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 A214117 #6 Jul 22 2025 23:09:18 %S A214117 8404,161051,111505491,13513419640,3745149506514,676387200779521, %T A214117 152139337430979981,30459812255259919550,6486022544560677853794, %U A214117 1336162570466427358704511,280197252137492154954816501 %N A214117 Number of 0..3 colorings of a 6X(n+1) array circular in the n+1 direction with new values 0..3 introduced in row major order. %C A214117 Row 6 of A214112 %H A214117 R. H. Hardin, <a href="/A214117/b214117.txt">Table of n, a(n) for n = 1..61</a> %e A214117 Some solutions for n=4 %e A214117 ..0..1..0..1..2....0..1..0..1..2....0..1..2..3..2....0..1..2..3..2 %e A214117 ..1..3..1..3..0....3..2..1..2..0....3..0..3..0..1....1..2..1..0..3 %e A214117 ..2..0..2..0..1....1..3..2..0..2....0..3..0..3..2....2..3..0..1..0 %e A214117 ..3..1..3..2..0....2..0..3..1..3....1..0..1..0..3....3..1..3..2..1 %e A214117 ..0..2..1..3..2....0..2..0..2..1....2..1..3..2..1....1..0..2..0..2 %e A214117 ..1..3..0..1..3....1..0..1..0..2....3..0..1..0..2....2..1..3..1..0 %K A214117 nonn %O A214117 1,1 %A A214117 _R. H. Hardin_ Jul 04 2012