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.

A281770 Number of 6Xn 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 0
2 68
3 374
4 5948
5 49986
6 502276
7 4845178
8 43943360
9 414035752
10 3763905492
11 34161108524
12 309491219676
13 2770210355448
14 24781891977992
15 220487430433918
16 1953506661837984
17 17268182347051482
18 152093095781502104

List of values

[0, 68, 374, 5948, 49986, 502276, 4845178, 43943360, 414035752, 3763905492, 34161108524, 309491219676, 2770210355448, 24781891977992, 220487430433918, 1953506661837984, 17268182347051482, 152093095781502104]