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

A031325 Position of n-th 0 in A031324.

Original entry on oeis.org

27, 48, 69, 99, 101, 114, 125, 141, 155, 170, 183, 206, 209, 219, 223, 232, 241, 246, 261, 272, 276, 280, 283, 293, 294, 373, 376, 383, 384, 391, 394, 398, 406, 424, 432, 435, 437, 452, 466, 467, 480, 494, 507, 509, 512, 518
Offset: 1

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A031334 Position of n-th 9 in A031324.

Original entry on oeis.org

15, 28, 33, 49, 76, 79, 95, 108, 115, 130, 139, 154, 160, 166, 190, 194, 200, 218, 231, 235, 251, 263, 271, 288, 295, 296, 303, 321, 350, 356, 363, 366, 367, 389, 402, 411, 427, 438, 465, 475, 506, 513, 514, 517, 520, 523, 527
Offset: 1

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Crossrefs

Cf. A031324.

A097485 Write the positive integers on labels in numerical order, forming an infinite sequence L. Consider now the succession of single digits made by juxtaposing Fibonacci numbers: 1 1 2 3 5 8 1 3 2 1 3 4 5 5 ... (A031324). This sequence gives a derangement of L that produces the same succession of digits, subject to the constraint that the smallest unused label must be used that does not lead to a contradiction.

Original entry on oeis.org

11, 23, 58, 1, 3, 2, 13, 4, 5, 589, 14, 42, 33, 37, 7, 6, 10, 9, 8, 71, 59, 72, 584, 41, 81, 67, 65, 109, 46, 17, 71, 12, 86, 57, 463, 68, 750, 25, 121, 39, 31, 96, 418, 317, 81, 151, 422, 98, 320
Offset: 1

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Author

Eric Angelini, Sep 19 2004

Keywords

Comments

Labels of L can be used only once in this sequence.
We could name this sequence the "Fibo_nat_cci" sequence (nat stands for "natural numbers").
Derangement here means the n-th term of L is not the n-th term of the sequence, so a(n) != n.

Examples

			We must begin with 1,1,2,3,... and we cannot have a(1) = 1, so the next possibility is the label "11". After "68" we must get "7,5,0,2,5,1,2,1,3,9,3,1,9,6,4,1,8..." (corresponding to Fibonacci numbers "75025,121393,196418..."); "7" is already used, and we cannot use "75" since no label begins with a 0. So the next term is "750".
		

Crossrefs

Extensions

Derangement wording introduced by Danny Rorabaugh, Nov 27 2015
Initial 0 removed by Danny Rorabaugh, Nov 28 2015

A031326 Position of n-th 1 in A031324.

Original entry on oeis.org

1, 6, 9, 16, 26, 31, 40, 42, 47, 52, 55, 56, 72, 74, 78, 82, 85, 88, 89, 91, 102, 110, 137, 147, 151, 158, 169, 175, 178, 184, 186, 191, 207, 214, 215, 221, 224, 229, 230, 237, 239, 264, 281, 282, 290, 300, 304, 305, 315, 319, 336
Offset: 1

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A031327 Position of n-th 2 in A031324.

Original entry on oeis.org

2, 8, 19, 35, 57, 70, 73, 93, 94, 98, 106, 109, 118, 126, 131, 132, 144, 145, 163, 171, 187, 193, 234, 238, 249, 260, 265, 269, 273, 275, 287, 291, 302, 310, 316, 318, 327, 331, 332, 349, 354, 358, 362, 371, 372, 374, 390, 392
Offset: 1

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Crossrefs

Cf. A031324.

A031328 Position of n-th 3 in A031324.

Original entry on oeis.org

3, 7, 10, 20, 21, 22, 64, 75, 77, 84, 97, 103, 113, 116, 140, 142, 153, 162, 172, 173, 197, 198, 203, 212, 213, 216, 220, 226, 228, 233, 243, 277, 286, 298, 299, 307, 320, 324, 338, 339, 343, 347, 397, 410, 413, 425, 444, 468, 486
Offset: 1

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A031329 Position of n-th 4 in A031324.

Original entry on oeis.org

11, 17, 18, 38, 39, 50, 62, 81, 92, 100, 104, 119, 134, 138, 146, 164, 174, 185, 192, 196, 199, 201, 202, 208, 217, 244, 259, 262, 285, 328, 329, 337, 346, 377, 381, 395, 405, 422, 429, 473, 474, 476, 492, 496, 499, 510, 515, 522
Offset: 1

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A031330 Position of n-th 5 in A031324.

Original entry on oeis.org

4, 12, 13, 32, 36, 46, 60, 68, 71, 90, 117, 120, 123, 136, 143, 148, 165, 176, 177, 180, 181, 240, 248, 266, 274, 279, 289, 297, 313, 322, 330, 333, 335, 345, 348, 355, 368, 380, 387, 388, 393, 407, 412, 419, 420, 440, 456, 458
Offset: 1

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A031331 Position of n-th 6 in A031324.

Original entry on oeis.org

25, 43, 45, 51, 59, 63, 65, 80, 105, 107, 135, 159, 161, 168, 179, 188, 195, 227, 250, 253, 268, 270, 278, 301, 309, 311, 326, 344, 351, 353, 360, 369, 375, 403, 418, 433, 448, 450, 457, 493, 504, 505, 511, 535, 559, 563, 581
Offset: 1

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Programs

  • Mathematica
    Flatten[Position[Flatten[IntegerDigits/@Fibonacci[Range[0,90]]],6]]-2 (* Harvey P. Dale, Jan 28 2015 *)

A031332 Position of n-th 7 in A031324.

Original entry on oeis.org

23, 24, 30, 34, 44, 53, 54, 61, 67, 86, 111, 121, 124, 129, 133, 149, 152, 189, 204, 205, 211, 222, 236, 242, 247, 252, 254, 255, 256, 258, 284, 306, 312, 314, 317, 340, 342, 361, 365, 370, 386, 396, 399, 409, 414, 421, 423, 441
Offset: 1

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Keywords

Crossrefs

Cf. A031324.
Showing 1-10 of 12 results. Next