# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a230590 Showing 1-1 of 1 %I A230590 #4 Oct 24 2013 07:25:03 %S A230590 0,8,270,7078,225010,7476932,239885668,7573457652,239197756936, %T A230590 7567375830884,239482620002238,7578269700586628,239803031035245668, %U A230590 7588268963577159422,240122303102460570488,7598397555002280321334 %N A230590 Number of nX4 0..5 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero %C A230590 Column 4 of A230592 %H A230590 R. H. Hardin, Table of n, a(n) for n = 1..93 %e A230590 Some solutions for n=3 %e A230590 ..0..3..4..3....0..5..2..1....0..3..4..3....0..1..2..1....0..1..0..3 %e A230590 ..1..0..5..2....1..2..3..0....1..0..5..2....1..2..3..0....5..2..3..4 %e A230590 ..2..3..4..3....0..1..4..5....2..3..4..1....0..5..4..5....4..1..0..5 %K A230590 nonn %O A230590 1,2 %A A230590 _R. H. Hardin_, Oct 24 2013 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE