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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.

A186096 T(n,k)=Number of (n+2)X(k+2) 0..4 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Table of values

n a(n)
1 102251
2 1252889
3 1252889
4 11258613
5 22559052
6 11258613
7 83378583
8 280102672
9 280102672
10 83378583
11 531218757
12 2743553694
13 4527262140
14 2743553694
15 531218757
16 2985984444
17 22408644868
18 55707179395
19 55707179395
20 22408644868
21 2985984444

List of values

[102251, 1252889, 1252889, 11258613, 22559052, 11258613, 83378583, 280102672, 280102672, 83378583, 531218757, 2743553694, 4527262140, 2743553694, 531218757, 2985984444, 22408644868, 55707179395, 55707179395, 22408644868, 2985984444]

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

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