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.

A067965 Number of binary arrangements without adjacent 1's on n X n array connected ne-sw and nw-se.

Table of values

n a(n)
1 2
2 9
3 119
4 2704
5 177073
6 21836929
7 6985036032
8 4576976735769
9 7263963336910751
10 24830487842030082304
11 198126078679714777857441
12 3494153303407491549112098721
13 141264727800378056245286463971328
14 12779122891585386852029424628087941481
15 2628141044813862018744988536642011269669959

List of values

[2, 9, 119, 2704, 177073, 21836929, 6985036032, 4576976735769, 7263963336910751, 24830487842030082304, 198126078679714777857441, 3494153303407491549112098721, 141264727800378056245286463971328, 12779122891585386852029424628087941481, 2628141044813862018744988536642011269669959]

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

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