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%I #4 Dec 18 2015 18:18:10
%S 0,0,35,7396,2655126,254601542,9411294829,187291345391
%N Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any horizontal, diagonal or antidiagonal neighbor, and containing the value n(n+1)/2-6
%C Column 5 of A212026
%e Some solutions for n=4
%e ..0........0........0........0........0........0........0........0
%e ..0.1......1.2......1.2......1.2......1.2......1.2......1.2......1.2
%e ..2.1.2....0.3.4....3.4.5....3.4.1....3.4.5....3.2.4....1.2.3....0.3.4
%e ..0.3.4.5..0.2.1.3..3.2.6.4..2.5.3.0..6.2.6.7..4.5.0.3..4.2.5.6..0.1.5.1
%K nonn
%O 1,3
%A _R. H. Hardin_ Apr 26 2012
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