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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.

A205247 Number of (n+1)X(n+1) 0..1 arrays with the number of clockwise edge increases in every 2X2 subblock the same.

Table of values

n a(n)
1 16
2 168
3 5212
4 387328
5 67731268
6 27913330476
7 27149753088796
8 62383316832685352
9 338853014329060508764
10 4353185098169744392741452
11 132316928041105714306034574484
12 9518293354852895518368238072987356

List of values

[16, 168, 5212, 387328, 67731268, 27913330476, 27149753088796, 62383316832685352, 338853014329060508764, 4353185098169744392741452, 132316928041105714306034574484, 9518293354852895518368238072987356]

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

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