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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.

A206469 Number of (n+1)X6 0..2 arrays with every 2X2 subblock having zero permanent.

Table of values

n a(n)
1 7225
2 958441
3 23707161
4 1693734025
5 61244865529
6 3420616959081
7 144660587865049
8 7310031634630729
9 329657818912939449
10 15990423345433902121
11 740325481079134598041
12 35313542504161253544969

List of values

[7225, 958441, 23707161, 1693734025, 61244865529, 3420616959081, 144660587865049, 7310031634630729, 329657818912939449, 15990423345433902121, 740325481079134598041, 35313542504161253544969]

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

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