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.

A037431 Positive numbers having the same set of digits in base 5 and base 8.

Original entry on oeis.org

1, 2, 3, 4, 91, 136, 200, 272, 540, 545, 609, 672, 705, 1035, 1164, 1665, 1681, 1698, 1699, 1748, 1818, 2115, 2123, 2179, 2323, 4257, 4260, 4625, 4626, 4682, 4691, 4760, 4802, 4817, 4818, 4834, 4880, 5211, 5251, 5315, 5324, 5328, 5331, 5337
Offset: 1

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Keywords

Examples

			545 is in the sequence because 545 in base 5 is 4140 and in base 8 it is 1041.
		

Crossrefs

Subsequence of A037395.

Programs

  • Mathematica
    Select[Range[5500],Union[IntegerDigits[#,5]]==Union[IntegerDigits[#,8]]&] (* Harvey P. Dale, Jun 01 2018 *)

Extensions

Corrected by Don Reble, Apr 28 2006
Edited by John Cerkan, Feb 11 2017