|
%I #4 Nov 02 2013 06:29:35
%S 34944,6885376,916182800,173342326336,35475345905904,7053147648320400,
%T 1388708377137781120,274182072337500339600,54206239527447927252960,
%U 10714454616856090049527824,2117614541783719562279014352
%N Number of (n+2)X(7+2) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, no adjacent elements equal, and upper left element zero
%C Column 7 of A230977
%H R. H. Hardin, <a href="/A230976/b230976.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=1
%e ..0..2..2..0..2..2..0..2..2....0..0..2..0..1..0..1..3..3
%e ..3..1..1..3..3..1..1..3..3....1..1..3..3..1..2..2..0..0
%e ..0..0..0..2..0..2..0..0..2....0..2..0..2..1..0..3..1..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 02 2013
| 