cp's OEIS Frontend

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.

A241053 Number of n X 5 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

Table of values

n a(n)
1 10
2 18
3 60
4 163
5 598
6 3411
7 11283
8 72578
9 404421
10 2220973
11 15323311
12 89098530
13 555805615
14 3439171493
15 20036872248
16 122952210402
17 718794479207
18 4313956945052
19 26242676909613
20 154481099979249
21 936900491409907

List of values

[10, 18, 60, 163, 598, 3411, 11283, 72578, 404421, 2220973, 15323311, 89098530, 555805615, 3439171493, 20036872248, 122952210402, 718794479207, 4313956945052, 26242676909613, 154481099979249, 936900491409907]