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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.

A240282 Number of nX5 0..3 arrays with no element equal to one plus the sum of elements to its left or two 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 4
2 181
3 2574
4 28654
5 484146
6 5646644
7 88953626
8 1357879302
9 17350066110
10 272318368893
11 3830297634073
12 53008989555669
13 804259922741153
14 11140838537971196
15 160309233474096916
16 2355215686029612116

List of values

[4, 181, 2574, 28654, 484146, 5646644, 88953626, 1357879302, 17350066110, 272318368893, 3830297634073, 53008989555669, 804259922741153, 11140838537971196, 160309233474096916, 2355215686029612116]

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

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