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 A214191 #6 Jul 22 2025 23:12:42 %S A214191 499,108893,96673866,76892349394,63801460335656,52728429977071820, %T A214191 43640411285319502254,36112297704840189696506, %U A214191 29884457546802474331953680,24730452099783783516454127661,20465374817193973734647830403223 %N A214191 Number of 0..6 colorings of a 4X(n+1) array circular in the n+1 direction with new values 0..6 introduced in row major order. %C A214191 Row 4 of A214187 %H A214191 R. H. Hardin, <a href="/A214191/b214191.txt">Table of n, a(n) for n = 1..148</a> %e A214191 Some solutions for n=4 %e A214191 ..0..1..2..3..1....0..1..0..1..2....0..1..0..1..2....0..1..2..0..1 %e A214191 ..2..3..0..1..0....1..2..1..2..3....1..2..1..0..3....3..4..5..3..6 %e A214191 ..0..4..5..6..3....0..3..0..1..2....0..1..2..1..2....4..1..6..5..2 %e A214191 ..6..5..0..4..5....1..0..1..0..3....1..2..3..2..3....6..2..1..4..5 %K A214191 nonn %O A214191 1,1 %A A214191 _R. H. Hardin_ Jul 07 2012