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%I #6 Nov 28 2014 09:37:13
%S 4096000,128000000,4000000000,125000000000,1750000000000,
%T 24500000000000,343000000000000,2941225000000000,25221004375000000,
%U 216270112515625000,1328763571296000000,8163923382042624000,50159145259269881856
%N Number of (n+2)X(2+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column
%C Column 2 of A250868
%H R. H. Hardin, <a href="/A250862/b250862.txt">Table of n, a(n) for n = 1..101</a>
%e Some solutions for n=1
%e ..0..0..0..1....0..0..0..2....2..0..0..2....2..0..0..2....0..0..0..1
%e ..0..3..2..2....1..0..3..3....2..2..2..2....0..2..0..0....0..0..0..3
%e ..2..2..2..2....0..1..3..1....0..2..1..2....0..0..3..0....2..0..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 28 2014