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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.

A239194 T(n,k)=Number of nXk 0..4 arrays with no element equal to the sum of elements to its left or the sum of the elements above it, modulo 5.

Table of values

n a(n)
1 4
2 12
3 12
4 40
5 120
6 40
7 128
8 1276
9 1276
10 128
11 416
12 13128
13 43648
14 13128
15 416
16 1344
17 136684
18 1436268
19 1436268
20 136684
21 1344
22 4352
23 1416192
24 47885992
25 151351888
26 47885992
27 1416192
28 4352
29 14080
30 14700364
31 1588084496
32 16147220164
33 16147220164

List of values

[4, 12, 12, 40, 120, 40, 128, 1276, 1276, 128, 416, 13128, 43648, 13128, 416, 1344, 136684, 1436268, 1436268, 136684, 1344, 4352, 1416192, 47885992, 151351888, 47885992, 1416192, 4352, 14080, 14700364, 1588084496, 16147220164, 16147220164]

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

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