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.

A283576 Number of 5Xn 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.

Table of values

n a(n)
1 0
2 256
3 6453
4 60802
5 945100
6 10919674
7 129527524
8 1518039552
9 17162725531
10 193879598458
11 2157351957174
12 23818259818860
13 261203745411854
14 2845597456824844
15 30846423421417897
16 332823725660697214

List of values

[0, 256, 6453, 60802, 945100, 10919674, 129527524, 1518039552, 17162725531, 193879598458, 2157351957174, 23818259818860, 261203745411854, 2845597456824844, 30846423421417897, 332823725660697214]

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

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