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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.

A181022 Maximum number of 1s in an nX(n+3) binary matrix with no three 1s adjacent in a line along a row, column or diagonally.

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%I A181022 #5 Dec 11 2020 09:57:38
%S A181022 3,8,10,16,24,29,37,48,56
%N A181022 Maximum number of 1s in an nX(n+3) binary matrix with no three 1s adjacent in a line along a row, column or diagonally.
%e A181022 Some solutions for 6X9
%e A181022 ..0..1..1..0..1..0..1..0..1....0..1..1..0..1..0..1..1..0
%e A181022 ..1..1..0..0..1..1..0..1..1....1..0..1..1..0..1..1..0..1
%e A181022 ..0..0..1..1..0..1..0..1..0....1..1..0..0..0..0..0..1..1
%e A181022 ..1..0..0..0..1..0..0..0..1....0..0..0..0..1..1..0..0..0
%e A181022 ..0..1..1..0..1..0..1..1..0....1..0..1..1..0..1..0..1..1
%e A181022 ..1..1..0..1..0..1..0..1..1....1..1..0..1..1..0..0..1..1
%Y A181022 Superdiagonal 3 of A181019.
%K A181022 nonn,more
%O A181022 1,1
%A A181022 _R. H. Hardin_, Sep 30 2010

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