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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.

A326099 Number of nXn 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 1
2 8
3 161
4 8628
5 1233763
6 463572941
7 457515856087
8 1187662505828132
9 8109848158608706092
10 145652282125715208618002
11 6879822326742091298103753274

List of values

[1, 8, 161, 8628, 1233763, 463572941, 457515856087, 1187662505828132, 8109848158608706092, 145652282125715208618002, 6879822326742091298103753274]

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

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