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.

A231748 Number of nX3 0..2 arrays with no element less than a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors.

Table of values

n a(n)
1 9
2 51
3 589
4 5106
5 41288
6 397219
7 3745096
8 34036486
9 313782748
10 2927905037
11 27164864918
12 251564198963
13 2335778916642
14 21695352159535
15 201366887006680
16 1869228803618176
17 17356005419910937
18 161143681489604094

List of values

[9, 51, 589, 5106, 41288, 397219, 3745096, 34036486, 313782748, 2927905037, 27164864918, 251564198963, 2335778916642, 21695352159535, 201366887006680, 1869228803618176, 17356005419910937, 161143681489604094]

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

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