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.

A303522 Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 31
3 80
4 359
5 1758
6 9225
7 56046
8 366415
9 2519399
10 17926787
11 129675215
12 946882296
13 6952003074
14 51182425206
15 377395379937
16 2785188408332
17 20564328532736
18 151875658775227
19 1121831718798095
20 8287122669326048
21 61221054216532119

List of values

[8, 31, 80, 359, 1758, 9225, 56046, 366415, 2519399, 17926787, 129675215, 946882296, 6952003074, 51182425206, 377395379937, 2785188408332, 20564328532736, 151875658775227, 1121831718798095, 8287122669326048, 61221054216532119]

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

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