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.

A062903 Numbers n such that n and its reversal are both multiples of 13.

Original entry on oeis.org

0, 494, 585, 676, 767, 858, 949, 1001, 1495, 1586, 1677, 1768, 1859, 2002, 2496, 2587, 2678, 2769, 3003, 3497, 3588, 3679, 4004, 4498, 4589, 4940, 5005, 5499, 5850, 5941, 6006, 6760, 6851, 6942, 7007, 7670, 7761, 7852, 7943, 8008, 8580, 8671
Offset: 1

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Author

Amarnath Murthy, Jul 01 2001

Keywords

Examples

			1495 and 5941 are both multiples of 13.
		

Crossrefs

Subsequence of A008595.

Programs

  • Mathematica
    Select[13*Range[0,700],Divisible[FromDigits[Reverse[IntegerDigits[ #]]],13]&] (* Harvey P. Dale, Nov 30 2014 *)
  • PARI
    isok(n) = !(n % 13) && !(fromdigits(Vecrev(digits(n))) % 13); \\ Michel Marcus, Aug 14 2018

Extensions

Corrected and extended by Dean Hickerson, Jul 06 2001
Zero added by Zak Seidov, May 31 2010