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.

Previous Showing 21-29 of 29 results.

A043319 a(n)=A033013(n)/16.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 225, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 450, 451, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 675, 676, 677, 679, 680, 681, 682, 683, 684
Offset: 1

Views

Author

Clark Kimberling

Keywords

Comments

Also: Numbers which, written in base 225, have all digits less than 15 and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

  • PARI
    is_A043319(n)=(n=[n])&&!until(!n[1], ((n=divrem(n[1], 225))[2]<15 && n[1]%15!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

A043309 a(n)=A033003(n)/6.

Original entry on oeis.org

1, 2, 3, 4, 25, 27, 28, 29, 50, 51, 53, 54, 75, 76, 77, 79, 100, 101, 102, 103, 626, 627, 628, 629, 675, 676, 678, 679, 700, 701, 702, 704, 725, 726, 727, 728, 1251, 1252, 1253, 1254, 1275, 1277, 1278, 1279, 1325, 1326, 1327, 1329
Offset: 1

Views

Author

Clark Kimberling

Keywords

Comments

Also: Numbers which, written in base 25, have all digits less than 5 and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

  • PARI
    is_A043309(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],25))[2]<5 && n[1]%5!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

A043310 a(n)=A033004(n)/7.

Original entry on oeis.org

1, 2, 3, 4, 5, 36, 38, 39, 40, 41, 72, 73, 75, 76, 77, 108, 109, 110, 112, 113, 144, 145, 146, 147, 149, 180, 181, 182, 183, 184, 1297, 1298, 1299, 1300, 1301, 1368, 1369, 1371, 1372, 1373, 1404, 1405, 1406, 1408, 1409, 1440, 1441, 1442, 1443, 1445, 1476, 1477
Offset: 1

Views

Author

Clark Kimberling

Keywords

Comments

Also: Numbers which, written in base 36, have all digits less than 6 and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

  • PARI
    is_A043310(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],36))[2]<6 && n[1]%6!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

Extensions

Definition corrected by and more terms from Georg Fischer, Mar 04 2021

A043311 a(n)=A033005(n)/8.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 49, 51, 52, 53, 54, 55, 98, 99, 101, 102, 103, 104, 147, 148, 149, 151, 152, 153, 196, 197, 198, 199, 201, 202, 245, 246, 247, 248, 249, 251, 294, 295, 296, 297, 298, 299, 2402, 2403, 2404, 2405, 2406, 2407, 2499
Offset: 1

Views

Author

Clark Kimberling

Keywords

Comments

Numbers which, written in base 49, have only digits 0 through 6 and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029. ~

Programs

  • PARI
    is_A043311(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],49))[2]<7 && n[1]%7!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

A043313 a(n)=A033007(n)/10.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 81, 83, 84, 85, 86, 87, 88, 89, 162, 163, 165, 166, 167, 168, 169, 170, 243, 244, 245, 247, 248, 249, 250, 251, 324, 325, 326, 327, 329, 330, 331, 332, 405, 406, 407, 408, 409, 411, 412, 413, 486, 487, 488
Offset: 1

Views

Author

Clark Kimberling

Keywords

Comments

Also: Numbers which, written in base 81, have only digits 0,...,8, and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

  • PARI
    is_A043313(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],81))[2]<9 && n[1]%9!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

A043314 a(n)=A033008(n)/11.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 100, 102, 103, 104, 105, 106, 107, 108, 109, 200, 201, 203, 204, 205, 206, 207, 208, 209, 300, 301, 302, 304, 305, 306, 307, 308, 309, 400, 401, 402, 403, 405, 406, 407, 408, 409, 500, 501, 502, 503, 504
Offset: 1

Views

Author

Clark Kimberling

Keywords

Comments

Also, numbers which, written in base 100, have all digits < 10 and no adjacent digits equal. - M. F. Hasler, Feb 03 2014

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

  • PARI
    is_A043314(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],100))[2]<10 && n[1]%10!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

A043315 a(n)=s(n)/12, where s=A033009.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 121, 123, 124, 125, 126, 127, 128, 129, 130, 131, 242, 243, 245, 246, 247, 248, 249, 250, 251, 252, 363, 364, 365, 367, 368, 369, 370, 371, 372, 373, 484, 485, 486, 487, 489, 490, 491, 492, 493, 494
Offset: 1

Views

Author

Clark Kimberling

Keywords

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

  • PARI
    is_A043315(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],121))[2]<11 && n[1]%11!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

A043316 a(n)=s(n)/13, where s=A033010.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 144, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 288, 289, 291, 292, 293, 294, 295, 296, 297, 298, 299, 432, 433, 434, 436, 437, 438, 439, 440, 441, 442, 443, 576, 577, 578, 579, 581, 582
Offset: 1

Views

Author

Clark Kimberling

Keywords

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

  • PARI
    is_A043316(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],144))[2]<12 && n[1]%12!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

A043318 a(n)=A033012(n)/15.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 196, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 392, 393, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 588, 589, 590, 592, 593, 594, 595, 596, 597, 598, 599, 600
Offset: 1

Views

Author

Clark Kimberling

Keywords

Comments

Also: Numbers which, written in base 196, have all digits less than 14 and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

  • PARI
    is_A043318(n)=(n=n[1])&&!until(!n[1], ((n=divrem(n[1], 196))[2]<14 && n[1]%14!=n[2])||return) \\ M. F. Hasler, Feb 03 2014
Previous Showing 21-29 of 29 results.

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