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.

A037415 Positive numbers having the same set of digits in base 2 and base 10.

Original entry on oeis.org

1, 10, 100, 101, 110, 1000, 1001, 1010, 1011, 1100, 1101, 1110, 10000, 10001, 10010, 10011, 10100, 10101, 10110, 10111, 11000, 11001, 11010, 11011, 11100, 11101, 11110, 100000, 100001, 100010, 100011, 100100, 100101, 100110, 100111, 101000, 101001, 101010, 101011, 101100
Offset: 1

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Author

Keywords

Crossrefs

Subsequence of A007088.

Programs

  • PARI
    isok(n) = Set(digits(n)) == Set(binary(n)); \\ Michel Marcus, Aug 31 2016

Extensions

More terms from Michel Marcus, Aug 31 2016
Name edited by John Cerkan, Jan 20 2017