%I #6 Mar 31 2012 12:36:00
%S 31,1983,421879,460055427,2002349014445,39657122226381527,
%T 3342508236591318287277,1238778403260497748171275569,
%U 1987238481358577950495683464612101
%N Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock sum greater than 4
%C Diagonal of A184497
%H R. H. Hardin, <a href="/A184488/b184488.txt">Table of n, a(n) for n = 1..10</a>
%e Some solutions for 3X3
%e ..2..0..1....2..1..2....1..1..1....0..2..2....0..2..2....2..2..1....0..1..2
%e ..1..2..2....1..2..2....1..2..2....2..2..1....2..1..2....2..1..2....2..2..0
%e ..1..2..0....2..0..1....0..2..2....1..1..1....2..0..2....1..1..2....2..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 15 2011