cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-10 of 12 results. Next

A093029 Indices of terms in A093019 with value 9.

Original entry on oeis.org

5, 10, 29, 34, 48, 53, 67, 72, 86, 91, 109, 114, 128, 133, 147, 152, 166, 171, 185, 190, 208, 213, 227, 232, 246, 251, 265, 270, 289, 294, 307, 312, 326, 331, 345, 350, 369, 374, 388, 393, 406, 411, 425, 430, 449, 454, 468, 473, 487, 492, 500, 519, 524, 538
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 9 to have a valid Luhn mod 10 check digit.

Examples

			10 is in the sequence because A093019(10)=9; 109 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093028.

Programs

  • Haskell
    a093029 n = a093029_list !! (n-1)
a093029_list = filter ((== 9) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 9. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093025 Indices of terms in A093019 with value 5.

Original entry on oeis.org

7, 12, 26, 31, 45, 50, 69, 74, 88, 93, 106, 111, 125, 130, 149, 154, 168, 173, 187, 192, 205, 210, 229, 234, 248, 253, 267, 272, 286, 291, 309, 314, 328, 333, 347, 352, 366, 371, 385, 390, 408, 413, 427, 432, 446, 451, 465, 470, 489, 494, 502, 516, 521, 535
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 5 to have a valid Luhn mod 10 check digit.

Examples

			12 is in the sequence because A093019(12)=5; 125 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093025 n = a093025_list !! (n-1)
a093025_list = filter ((== 5) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 5. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093028 Indices of terms in A093019 with value 8.

Original entry on oeis.org

1, 15, 20, 39, 44, 58, 63, 77, 82, 96, 100, 119, 124, 138, 143, 157, 162, 176, 181, 195, 204, 218, 223, 237, 242, 256, 261, 275, 280, 299, 303, 317, 322, 336, 341, 355, 360, 379, 384, 398, 402, 416, 421, 435, 440, 459, 464, 478, 483, 497, 505, 510, 529, 534
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 8 to have a valid Luhn mod 10 check digit.

Examples

			15 is in the sequence because A093019(15)=8; 158 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093028 n = a093028_list !! (n-1)
a093028_list = filter ((== 8) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 8. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093020 Indices of terms in A093019 with value 0.

Original entry on oeis.org

0, 19, 24, 38, 43, 57, 62, 76, 81, 95, 104, 118, 123, 137, 142, 156, 161, 175, 180, 199, 203, 217, 222, 236, 241, 255, 260, 279, 284, 298, 302, 316, 321, 335, 340, 359, 364, 378, 383, 397, 401, 415, 420, 439, 444, 458, 463, 477, 482, 496, 509, 514, 528, 533
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 0 to have a valid Luhn mod 10 check digit.

Examples

			19 is in the sequence because A093019(19)=0; 190 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093020 n = a093020_list !! (n-1)
a093020_list = filter ((== 0) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 0. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093021 Indices of terms in A093019 with value 1.

Original entry on oeis.org

9, 14, 28, 33, 47, 52, 66, 71, 85, 90, 108, 113, 127, 132, 146, 151, 165, 170, 189, 194, 207, 212, 226, 231, 245, 250, 269, 274, 288, 293, 306, 311, 325, 330, 349, 354, 368, 373, 387, 392, 405, 410, 429, 434, 448, 453, 467, 472, 486, 491, 504, 518, 523, 537
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 1 to have a valid Luhn mod 10 check digit.

Examples

			14 is in the sequence because A093019(14)=1; 141 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093021 n = a093021_list !! (n-1)
a093021_list = filter ((== 1) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 1. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093022 Indices of terms in A093019 with value 2.

Original entry on oeis.org

4, 18, 23, 37, 42, 56, 61, 75, 80, 99, 103, 117, 122, 136, 141, 155, 160, 179, 184, 198, 202, 216, 221, 235, 240, 259, 264, 278, 283, 297, 301, 315, 320, 339, 344, 358, 363, 377, 382, 396, 400, 419, 424, 438, 443, 457, 462, 476, 481, 495, 508, 513, 527, 532
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 2 to have a valid Luhn mod 10 check digit.

Examples

			18 is in the sequence because A093019(18)=2; 182 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093022 n = a093022_list !! (n-1)
a093022_list = filter ((== 2) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 2. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093023 Indices of terms in A093019 with value 3.

Original entry on oeis.org

8, 13, 27, 32, 46, 51, 65, 70, 89, 94, 107, 112, 126, 131, 145, 150, 169, 174, 188, 193, 206, 211, 225, 230, 249, 254, 268, 273, 287, 292, 305, 310, 329, 334, 348, 353, 367, 372, 386, 391, 409, 414, 428, 433, 447, 452, 466, 471, 485, 490, 503, 517, 522, 536
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 3 to have a valid Luhn mod 10 check digit.

Examples

			13 is in the sequence because A093019(13)=3; 133 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093023 n = a093023_list !! (n-1)
a093023_list = filter ((== 3) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 3. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093024 Indices of terms in A093019 with value 4.

Original entry on oeis.org

3, 17, 22, 36, 41, 55, 60, 79, 84, 98, 102, 116, 121, 135, 140, 159, 164, 178, 183, 197, 201, 215, 220, 239, 244, 258, 263, 277, 282, 296, 300, 319, 324, 338, 343, 357, 362, 376, 381, 395, 404, 418, 423, 437, 442, 456, 461, 475, 480, 499, 507, 512, 526, 531
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 4 to have a valid Luhn mod 10 check digit.

Examples

			17 is in the sequence because A093019(17)=4; 174 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093024 n = a093024_list !! (n-1)
a093024_list = filter ((== 4) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 4. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093026 Indices of terms in A093019 with value 6.

Original entry on oeis.org

2, 16, 21, 35, 40, 59, 64, 78, 83, 97, 101, 115, 120, 139, 144, 158, 163, 177, 182, 196, 200, 219, 224, 238, 243, 257, 262, 276, 281, 295, 304, 318, 323, 337, 342, 356, 361, 375, 380, 399, 403, 417, 422, 436, 441, 455, 460, 479, 484, 498, 506, 511, 525, 530
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 6 to have a valid Luhn mod 10 check digit.

Examples

			16 is in the sequence because A093019(16)=6; 166 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093026 n = a093026_list !! (n-1)
a093026_list = filter ((== 6) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 6. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014

A093027 Indices of terms in A093019 with value 7.

Original entry on oeis.org

6, 11, 25, 30, 49, 54, 68, 73, 87, 92, 105, 110, 129, 134, 148, 153, 167, 172, 186, 191, 209, 214, 228, 233, 247, 252, 266, 271, 285, 290, 308, 313, 327, 332, 346, 351, 365, 370, 389, 394, 407, 412, 426, 431, 445, 450, 469, 474, 488, 493, 501, 515, 520, 539
Offset: 1

Views

Author

Ray Chandler, Apr 03 2004

Keywords

Comments

Integers which require a following 7 to have a valid Luhn mod 10 check digit.

Examples

			11 is in the sequence because A093019(11)=7; 117 has a valid Luhn mod 10 check digit.

Links

Crossrefs

Cf. A093017-A093029.

Programs

  • Haskell
    a093027 n = a093027_list !! (n-1)
a093027_list = filter ((== 7) . a093019) [0..]
-- Reinhard Zumkeller, Nov 08 2014

Formula

A093019(a(n)) = 7. - Reinhard Zumkeller, Nov 08 2014

Extensions

Offset changed by Reinhard Zumkeller, Nov 08 2014
Showing 1-10 of 12 results. Next

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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