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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.

A206465 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having zero permanent.

Table of values

n a(n)
1 25
2 1411
3 110889
4 68352739
5 61244865529
6 377599682448675
7 3848918441303655721
8 232902549300945882026755
9 26631802795003317433250214201
10 15822211869785299795988010016362883

List of values

[25, 1411, 110889, 68352739, 61244865529, 377599682448675, 3848918441303655721, 232902549300945882026755, 26631802795003317433250214201, 15822211869785299795988010016362883]

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

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