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 A219415 #5 Jul 23 2025 00:26:12 %S A219415 1,616,50077,2225293,107701719,5618116265,290895472306,14934409278104, %T A219415 767037960293079 %N A219415 Unmatched value maps: number of 6Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..2 6Xn array. %C A219415 Row 6 of A219410 %e A219415 Some solutions for n=3 %e A219415 ..1..0..0....1..1..0....1..1..1....1..0..1....1..1..0....1..1..0....1..0..0 %e A219415 ..1..0..1....1..0..1....1..1..1....0..1..1....0..0..0....0..0..0....1..0..0 %e A219415 ..1..0..0....0..0..1....0..0..0....0..0..1....1..1..1....0..1..0....1..1..0 %e A219415 ..0..0..0....0..1..1....0..0..1....0..0..0....0..0..1....1..0..1....0..0..1 %e A219415 ..1..1..0....0..0..1....1..0..0....0..1..0....0..1..0....0..0..1....0..1..0 %e A219415 ..0..0..1....1..0..0....0..1..1....0..0..1....1..0..0....1..1..1....1..0..1 %K A219415 nonn %O A219415 1,2 %A A219415 _R. H. Hardin_ Nov 19 2012