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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.

A206253 Number of (n+1)X7 0..3 arrays with every 2X2 subblock having zero permanent.

Table of values

n a(n)
1 258064
2 434613664
3 27285753856
4 16533087493120
5 2261195747329024
6 848170637644693504
7 173223627538782109696
8 53060397281015908925440
9 12918833834289527406198784
10 3660962109260466462309744640

List of values

[258064, 434613664, 27285753856, 16533087493120, 2261195747329024, 848170637644693504, 173223627538782109696, 53060397281015908925440, 12918833834289527406198784, 3660962109260466462309744640]

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

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