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.

A269058 Number of 7Xn 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.

Table of values

n a(n)
1 2187
2 29646
3 464250
4 9779808
5 187575858
6 3726221592
7 71430596250
8 1369456711662
9 25864594357554
10 485843586726426
11 9051481373536698
12 167744789740348134
13 3091817487227619306
14 56742145362259364580

List of values

[2187, 29646, 464250, 9779808, 187575858, 3726221592, 71430596250, 1369456711662, 25864594357554, 485843586726426, 9051481373536698, 167744789740348134, 3091817487227619306, 56742145362259364580]