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.

A231857 Number of 3Xn 0..2 arrays with no element having a strict majority of its horizontal and antidiagonal neighbors equal to itself plus one mod 3, with upper left element zero (rock paper and scissors drawn positions).

Table of values

n a(n)
1 9
2 55
3 656
4 7339
5 85288
6 991167
7 11529929
8 134163686
9 1561220559
10 18167587282
11 211412670503
12 2460168784055
13 28628514590530
14 333144562652494
15 3876739724171184
16 45112880641621747
17 524969986286019848

List of values

[9, 55, 656, 7339, 85288, 991167, 11529929, 134163686, 1561220559, 18167587282, 211412670503, 2460168784055, 28628514590530, 333144562652494, 3876739724171184, 45112880641621747, 524969986286019848]