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.

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

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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

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