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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.

A267933 T(n,k)=Number of nXk 0..3 arrays with every repeated value in every row and column greater than the previous repeated value.

Table of values

n a(n)
1 4
2 16
3 16
4 60
5 256
6 60
7 222
8 3600
9 3600
10 222
11 804
12 49284
13 178068
14 49284
15 804
16 2872
17 646416
18 8459154
19 8459154
20 646416
21 2872
22 10132
23 8248384
24 376812420
25 1376175262
26 376812420
27 8248384
28 10132
29 35383
30 102657424
31 16109362560
32 205495778969

List of values

[4, 16, 16, 60, 256, 60, 222, 3600, 3600, 222, 804, 49284, 178068, 49284, 804, 2872, 646416, 8459154, 8459154, 646416, 2872, 10132, 8248384, 376812420, 1376175262, 376812420, 8248384, 10132, 35383, 102657424, 16109362560, 205495778969]

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

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