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.

A295269 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1's.

Table of values

n a(n)
1 2
2 11
3 164
4 6659
5 748740
6 230659662
7 196091375073
8 458510348625561
9 2951683183977839155
10 52303382279027148884728
11 2551191530898428081696382880
12 342537007989863347885673784022387

List of values

[2, 11, 164, 6659, 748740, 230659662, 196091375073, 458510348625561, 2951683183977839155, 52303382279027148884728, 2551191530898428081696382880, 342537007989863347885673784022387]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.