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.

A188742 Number of nX4 binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.

Table of values

n a(n)
1 16
2 256
3 1723
4 17286
5 176002
6 1605680
7 15398676
8 148041805
9 1404107414
10 13398153644
11 127892153741
12 1218764127847
13 11622887616476
14 110848330389832
15 1056953079327533
16 10079078798340060
17 96114455989370660
18 916528036067337866

List of values

[16, 256, 1723, 17286, 176002, 1605680, 15398676, 148041805, 1404107414, 13398153644, 127892153741, 1218764127847, 11622887616476, 110848330389832, 1056953079327533, 10079078798340060, 96114455989370660, 916528036067337866]