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.

A203098 Number of nX5 0..3 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.

Table of values

n a(n)
1 144
2 143510
3 87531478
4 48260497186
5 27467664499412
6 15712898935252156
7 8968410661761080882
8 5118067454812170831280
9 2921169534343554102418252
10 1667264462683367539615630114
11 951588418839778093530014930652

List of values

[144, 143510, 87531478, 48260497186, 27467664499412, 15712898935252156, 8968410661761080882, 5118067454812170831280, 2921169534343554102418252, 1667264462683367539615630114, 951588418839778093530014930652]