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.

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A155894 Least positive integer such that a(n)! starts with n, both written in base 16.

Original entry on oeis.org

1, 2, 10, 36, 9, 3, 5, 24, 8, 43, 82, 25, 30, 46, 64, 62, 60, 68, 7, 14, 70, 18, 13, 4, 31, 272, 19, 12, 97, 35, 161, 140, 20, 86, 27, 74, 131, 11, 502, 234, 47, 181, 386, 21, 6, 996, 52, 232, 144, 32, 393, 189, 199, 281, 10, 490, 39, 154, 83, 22, 28, 577, 63, 65, 88, 61, 115
Offset: 1

Views

Author

M. F. Hasler, Feb 01 2009

Keywords

Crossrefs

Programs

  • C
    See Links section.
  • PARI
    A155894(n)={ local( F=1,k=1 ); while( F\1!=n, F*=k++; while( F>=n+1, F/=16 )); k}
    
Showing 1-1 of 1 results.