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.

A205311 Number of (n+1) X (n+1) 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 8
2 84
3 2606
4 193664
5 33865634
6 13956665238
7 13574876544398
8 31191658416342676
9 169426507164530254382
10 2176592549084872196370726
11 66158464020552857153017287242
12 4759146677426447759184119036493678

List of values

[8, 84, 2606, 193664, 33865634, 13956665238, 13574876544398, 31191658416342676, 169426507164530254382, 2176592549084872196370726, 66158464020552857153017287242, 4759146677426447759184119036493678]