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%I #4 Dec 18 2015 18:18:10
%S 0,0,67,17947,5225620,408588191,13307423101,244159057556
%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 diagonal or antidiagonal neighbor, and containing the value n(n+1)/2-6
%C Column 5 of A211963
%e Some solutions for n=4
%e ..0........0........0........0........0........0........0........0
%e ..1.2......1.2......1.1......1.2......1.1......1.2......0.1......1.1
%e ..3.3.4....3.2.1....2.3.4....3.4.3....2.3.4....3.0.4....0.1.2....2.2.3
%e ..1.2.5.5..0.4.5.6..5.1.2.0..1.2.5.6..2.1.1.0..1.0.1.0..3.4.4.0..3.4.4.4
%K nonn
%O 1,3
%A _R. H. Hardin_ Apr 26 2012
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