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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.

A218999 Unmatched value maps: number of nX5 binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..2 nX5 array.

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%I A218999 #5 Jul 23 2025 00:09:39
%S A218999 12,604,16648,462668,13259232,377629096,10745153084,305936314868,
%T A218999 8710085382952
%N A218999 Unmatched value maps: number of nX5 binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..2 nX5 array.
%C A218999 Column 5 of A219002
%e A218999 Some solutions for n=3
%e A218999 ..0..1..1..0..1....1..0..0..0..0....1..1..1..0..0....0..1..1..1..0
%e A218999 ..1..0..1..1..0....0..1..0..1..1....1..1..0..1..0....1..0..0..0..0
%e A218999 ..0..1..0..0..1....1..0..0..0..1....1..1..1..0..1....0..0..0..0..0
%K A218999 nonn
%O A218999 1,1
%A A218999 _R. H. Hardin_ Nov 09 2012

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