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A153947 Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 6 ones in any 4 X 4 X 4 subtriangle. 0

%I #3 Mar 31 2012 12:35:21

%S 1,2,2,4,11,23,83,542,2154,15035,184615,1315991,16739106,377984235,

%T 5010747205,118406407922,4950057264228,123458500863829

%N Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 6 ones in any 4 X 4 X 4 subtriangle.

%K nonn

%O 0,2

%A _R. H. Hardin_ Jan 03 2009

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Last modified February 21 20:02 EST 2024. Contains 370237 sequences. (Running on oeis4.)