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.

A129359 Numbers k such that A129357(8*k) == 2 (mod 4).

Original entry on oeis.org

1, 3, 5, 6, 8, 9, 13, 15, 16, 19, 20, 23, 26, 27, 28, 29, 31, 33, 34, 35, 36, 38, 45, 48, 50, 51, 53, 55, 56, 59, 61, 63, 64, 69, 71, 73, 77, 78, 83, 84, 85, 86, 89, 91, 93, 94, 96, 100, 101, 103, 104, 108, 110, 115, 119, 121, 124, 127, 129, 131, 133, 134, 135
Offset: 1

Views

Author

Paul D. Hanna, Apr 11 2007

Keywords

Crossrefs

Cf. A129357.

Programs

  • PARI
    lista(nn) = my(y=prod(k=1, 8*nn, (1-x)^4*sum(j=1, k, binomial(j+2, 3)*x^(j-1)) + x*O(x^(8*nn)))); for(k=1, nn, if(polcoeff(y, 8*k)%4 == 2, print1(k, ", "))); \\ Jinyuan Wang, Jan 01 2021

Extensions

More terms from, name edited and offset changed to 1 by Jinyuan Wang, Jan 01 2021