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 A220391 #5 Jul 23 2025 01:07:59 %S A220391 1,616,22989,715412,34521416,1509240923,63512364783,2724587924707, %T A220391 116840672185170 %N A220391 Majority value maps: number of 6Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..1 6Xn array. %C A220391 Row 6 of A220386 %e A220391 Some solutions for n=3 %e A220391 ..1..1..0....1..0..0....0..1..1....0..0..1....1..1..1....1..0..0....0..0..0 %e A220391 ..1..1..0....0..0..1....1..0..1....1..1..0....0..0..1....0..0..0....0..0..1 %e A220391 ..1..1..1....0..1..1....0..1..1....1..1..1....1..1..0....1..1..1....1..1..0 %e A220391 ..1..0..1....1..1..1....1..1..0....0..0..0....1..1..0....1..1..1....0..0..1 %e A220391 ..0..1..1....1..1..1....0..1..1....0..0..1....1..0..1....1..1..0....1..1..0 %e A220391 ..1..0..1....0..0..0....1..1..1....1..1..0....1..1..1....0..0..1....0..0..1 %K A220391 nonn %O A220391 1,2 %A A220391 _R. H. Hardin_ Dec 13 2012