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A194613 Half the number of lower triangles of an (n+1)X(n+1) 0..6 array with no element equal to the average of its horizontal and vertical neighbors 0

%I #4 Mar 31 2012 12:36:22

%S 117,34247,66369488,873084601728,77572756670578163,

%T 46519509694797259637061

%N Half the number of lower triangles of an (n+1)X(n+1) 0..6 array with no element equal to the average of its horizontal and vertical neighbors

%C Column 6 of A194615

%e Some solutions for 3X3

%e ..3......6......3......1......3......5......1......4......1......4......6

%e ..1.2....1.2....4.4....6.0....2.3....2.5....0.5....3.1....5.0....5.4....5.4

%e ..2.0.6..1.4.5..3.5.2..0.5.1..1.3.0..2.4.1..6.0.2..2.4.5..5.6.4..6.6.4..0.1.2

%K nonn

%O 1,1

%A _R. H. Hardin_ Aug 30 2011

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Last modified August 22 15:44 EDT 2024. Contains 375369 sequences. (Running on oeis4.)