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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.

A240410 Number of nX5 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

n a(n)
1 8
2 162
3 3035
4 74655
5 1765436
6 45245148
7 1123774316
8 29595088887
9 749274246946
10 19914152854965
11 509962303902956
12 13581165239873235
13 350176977524708743
14 9321339280823558587
15 241406266383306613035
16 6417224632827750349585

List of values

[8, 162, 3035, 74655, 1765436, 45245148, 1123774316, 29595088887, 749274246946, 19914152854965, 509962303902956, 13581165239873235, 350176977524708743, 9321339280823558587, 241406266383306613035, 6417224632827750349585]

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

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