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.

A207803 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 0 1 vertically.

Table of values

n a(n)
1 2
2 16
3 102
4 1970
5 57184
6 3511534
7 388134978
8 82999241712
9 33304563708790
10 25409866877400042
11 36648009080479725120
12 100161609586888545878490
13 518205987191621802807914102
14 5077481011895003740693688753360

List of values

[2, 16, 102, 1970, 57184, 3511534, 388134978, 82999241712, 33304563708790, 25409866877400042, 36648009080479725120, 100161609586888545878490, 518205987191621802807914102, 5077481011895003740693688753360]

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

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