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.

A229844 Number of nX5 0..2 arrays x(i,j) with each element horizontally or vertically next to at least one element with value 2-x(i,j).

Table of values

n a(n)
1 15
2 2247
3 178311
4 15269193
5 1296261759
6 110203382331
7 9366963651897
8 796197119067381
9 67676718934477599
10 5752525261171518051
11 488964895071793945731
12 41562038669326401752469
13 3532775185416959988138093

List of values

[15, 2247, 178311, 15269193, 1296261759, 110203382331, 9366963651897, 796197119067381, 67676718934477599, 5752525261171518051, 488964895071793945731, 41562038669326401752469, 3532775185416959988138093]