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.

A087329 Independence numbers for KT_4 knight on hexagonal board.

Original entry on oeis.org

1, 3, 3, 4, 7, 9, 12, 15, 19, 22, 25, 28, 37, 40, 46, 51, 61, 66, 71, 76, 91, 96, 103, 111, 127
Offset: 1

Views

Author

N. J. A. Sloane, Oct 21 2003

Keywords

Crossrefs

Formula

a(4*n+1) = 3*n^2 + 3*n + 1 = A003215(n) from Bode and Harborth. - Andy Huchala, Mar 16 2024

Extensions

a(17)-a(25) from Andy Huchala, Mar 16 2024