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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.

A103139 Woolbright sequence: the maximum number of kings on an n X n chessboard such that every single king is attacking a number of other kings that is smaller or equal to the number of empty spaces around it.

Table of values

n a(n)
1 1
2 2
3 6
4 9
5 15
6 22
7 28
8 39
9 49
10 59
11 73

List of values

[1, 2, 6, 9, 15, 22, 28, 39, 49, 59, 73]

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

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