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%I #5 Dec 18 2015 18:17:44
%S 1,3,34,5249,7418424,41521783200,788547395813440
%N Number of lower triangles of an n X n 0..6 array with new values introduced in row major order 0..6 and no two horizontal or vertical neighbors of any element equal
%C Column 6 of A194893
%e Some solutions for 4X4
%e ..0........0........0........0........0........0........0........0
%e ..0.1......1.2......0.1......1.1......1.2......1.2......0.1......1.1
%e ..2.2.3....1.3.4....2.3.0....2.3.0....1.3.0....3.3.4....2.3.0....2.3.4
%e ..1.4.5.6..2.0.0.2..4.4.5.2..0.4.1.2..2.4.4.2..2.0.4.1..1.4.2.3..2.3.0.5
%K nonn
%O 1,2
%A _R. H. Hardin_ Sep 04 2011
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