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.

A286607 Numbers that are not divisible by the sum of their factorial base digits (A034968).

Original entry on oeis.org

3, 5, 7, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 25, 28, 29, 31, 32, 33, 34, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 53, 55, 57, 58, 59, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 73, 74, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 92, 93, 94, 95, 97, 98, 99, 100, 101, 102, 103, 104, 106, 107
Offset: 1

Views

Author

Antti Karttunen, Jun 18 2017

Keywords

Crossrefs

Cf. A034968, A118363 (complement), A286604.

Programs

  • Mathematica
    q[n_] := Module[{k = n, m = 2, r, s = 0}, While[{k, r} = QuotientRemainder[k, m]; k != 0|| r != 0, s += r; m++]; !Divisible[n, s]]; Select[Range[120], q] (* Amiram Eldar, Feb 21 2024 *)
  • Python
    def a007623(n, p=2): return n if n