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.

A303629 Number of 7Xn 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 64
2 21
3 10288
4 62207
5 4288358
6 122517773
7 6323564388
8 290118140045
9 14717695448165
10 745702210079702
11 38382642404113793
12 1985085140054551129
13 102986990515395922403
14 5353920883901539271717
15 278582161093558674832024

List of values

[64, 21, 10288, 62207, 4288358, 122517773, 6323564388, 290118140045, 14717695448165, 745702210079702, 38382642404113793, 1985085140054551129, 102986990515395922403, 5353920883901539271717, 278582161093558674832024]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.