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 A219419 #5 Jul 23 2025 00:26:26 %S A219419 21,454,9926,218838,4775307,104434119,2284814260,49979133672, %T A219419 1093274545336,23915155162485,523138192294728,11443519356879492, %U A219419 250324199629970283,5475780830828522030,119781370244825665556 %N A219419 Unchanging value maps: number of nX6 binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 nX6 array. %C A219419 Column 6 of A219421 %e A219419 Some solutions for n=3 %e A219419 ..0..0..0..1..0..1....1..0..0..0..0..1....0..0..1..1..0..0....0..0..0..0..0..0 %e A219419 ..1..0..0..0..0..1....1..0..0..0..0..1....0..0..0..0..0..1....1..1..0..1..0..0 %e A219419 ..0..0..0..0..0..1....1..0..1..0..0..1....0..0..0..1..1..1....1..1..1..1..0..0 %K A219419 nonn %O A219419 1,1 %A A219419 _R. H. Hardin_ Nov 19 2012