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.

A205313 Number of (n+1) X 4 0..1 arrays with every 2 X 2 subblock having the same number of equal edges, and new values 0..1 introduced in row major order.

Table of values

n a(n)
1 56
2 376
3 2606
4 18152
5 126536
6 882182
7 6150512
8 42881096
9 298965278
10 2084374136
11 14532174632
12 101317751318
13 706383387200
14 4924877262824
15 34336051065326
16 239389600968776
17 1669014906316040
18 11636306448704678
19 81127872049414160

List of values

[56, 376, 2606, 18152, 126536, 882182, 6150512, 42881096, 298965278, 2084374136, 14532174632, 101317751318, 706383387200, 4924877262824, 34336051065326, 239389600968776, 1669014906316040, 11636306448704678, 81127872049414160]