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.

A232017 Number of n X 2 0..2 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.

Table of values

n a(n)
1 3
2 22
3 121
4 704
5 4059
6 23422
7 135166
8 779977
9 4500958
10 25973244
11 149881402
12 864906711
13 4991036946
14 28801314179
15 166201073269
16 959081123649
17 5534480515641
18 31937313562863
19 184297694197368
20 1063509616098391

List of values

[3, 22, 121, 704, 4059, 23422, 135166, 779977, 4500958, 25973244, 149881402, 864906711, 4991036946, 28801314179, 166201073269, 959081123649, 5534480515641, 31937313562863, 184297694197368, 1063509616098391]

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

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