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.

A063672 Sequence A019320 in binary.

Original entry on oeis.org

10, 1, 11, 111, 101, 11111, 11, 1111111, 10001, 1001001, 1011, 11111111111, 1101, 1111111111111, 101011, 10010111, 100000001, 11111111111111111, 111001, 1111111111111111111, 11001101, 100100110111, 1010101011
Offset: 0

Views

Author

Antti Karttunen, Aug 03 2001

Keywords

Crossrefs

Programs

  • Maple
    map(convert, A019320,binary); or up to n=104 with: map(convert,[seq(Phi_pos_terms(j,2)-Phi_neg_terms(j,2),j=0..104)],binary);
  • Mathematica
    A063672[n_] := If[n == 0, 10, FromDigits[IntegerDigits[Cyclotomic[n, 2], 2]]];
    Array[A063672, 30, 0] (* Paolo Xausa, Feb 26 2024 *)