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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.

A232023 T(n,k)=Number of nXk 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 3
3 9
4 9
5 22
6 27
7 22
8 66
9 121
10 81
11 51
12 212
13 852
14 704
15 243
16 121
17 716
18 6443
19 11517
20 4059
21 729
22 292
23 2447
24 52680
25 196196
26 156913
27 23422
28 2187
29 704
30 8312
31 429976
32 3668759
33 6129361
34 2125749
35 135166
36 6561
37 1691
38 28118
39 3466702
40 66962048
41 266779524

List of values

[3, 3, 9, 9, 22, 27, 22, 66, 121, 81, 51, 212, 852, 704, 243, 121, 716, 6443, 11517, 4059, 729, 292, 2447, 52680, 196196, 156913, 23422, 2187, 704, 8312, 429976, 3668759, 6129361, 2125749, 135166, 6561, 1691, 28118, 3466702, 66962048, 266779524]

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

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