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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.

A259426 Number of (n+1) X (7+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0001 0011 or 0111.

Table of values

n a(n)
1 16897
2 1376077
3 106118138
4 8331704179
5 650266054724
6 50866278137234
7 3975872829274865
8 310861903249642571
9 24302876708094703188
10 1900054647395205833528
11 148548577603845580636430

List of values

[16897, 1376077, 106118138, 8331704179, 650266054724, 50866278137234, 3975872829274865, 310861903249642571, 24302876708094703188, 1900054647395205833528, 148548577603845580636430]

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

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