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.
%I A218822 #5 Jul 23 2025 00:06:16 %S A218822 37,3268,158648,6449353,280040904,11931365309 %N A218822 Unmatched value maps: number of nX7 binary arrays indicating the locations of corresponding elements not equal to any king-move neighbor in a random 0..2 nX7 array. %C A218822 Column 7 of A218823 %e A218822 Some solutions for n=3 %e A218822 ..1..0..1..0..0..0..0....0..0..1..0..1..0..1....0..1..0..1..1..0..1 %e A218822 ..0..0..0..0..1..0..1....0..1..0..0..0..1..0....0..0..0..0..0..1..0 %e A218822 ..0..1..0..1..0..0..0....1..0..0..1..1..0..1....0..1..0..0..0..0..0 %K A218822 nonn %O A218822 1,1 %A A218822 _R. H. Hardin_ Nov 06 2012