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.

A207945 Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.

Table of values

n a(n)
1 2
2 16
3 102
4 1369
5 18172
6 362404
7 7513176
8 208947025
9 6018764552
10 220642515076
11 8323556149400
12 385679126851225
13 18298351908731960
14 1039016878950507076
15 60196918693633189580
16 4091835726607570472281
17 283040172741877232421150

List of values

[2, 16, 102, 1369, 18172, 362404, 7513176, 208947025, 6018764552, 220642515076, 8323556149400, 385679126851225, 18298351908731960, 1039016878950507076, 60196918693633189580, 4091835726607570472281, 283040172741877232421150]

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

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