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.

A254160 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

Table of values

n a(n)
1 512
2 23660
3 1553720
4 191190272
5 47722312832
6 24789263869340
7 27196332026497280
8 62670987439073417464
9 306649596390478314360688
10 3185451673330281289722851308
11 70105876620029167895782015020688

List of values

[512, 23660, 1553720, 191190272, 47722312832, 24789263869340, 27196332026497280, 62670987439073417464, 306649596390478314360688, 3185451673330281289722851308, 70105876620029167895782015020688]

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

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