|
%I #4 Oct 13 2013 16:26:51
%S 0,118,5838,517794,38111288,2905031942,220881339818,16727315344402,
%T 1267371575854592,96051870649304886,7279121508944890350,
%U 551622030187576806890,41802997413105272045312,3167917547077219351494862
%N Number of nX5 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero
%C Column 5 of A230250
%H R. H. Hardin, <a href="/A230248/b230248.txt">Table of n, a(n) for n = 1..69</a>
%e Some solutions for n=3
%e ..0..1..0..2..1....0..2..3..0..3....0..3..2..1..0....0..1..2..3..2
%e ..3..2..0..3..0....1..0..0..1..2....1..2..2..3..3....1..0..1..0..1
%e ..3..0..1..2..3....2..3..3..0..3....3..0..1..0..2....2..3..0..3..2
%K nonn
%O 1,2
%A _R. H. Hardin_, Oct 13 2013
| 