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A153936 Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 4 ones in any 5 X 5 X 5 subtriangle. 0

%I

%S 1,2,4,13,26,65,226,1291,7132,55130,379228,4264780,44700351,743555327,

%T 11220972023,261784540652,5859844173065,202299825940682,

%U 6575351187836482

%N Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 4 ones in any 5 X 5 X 5 subtriangle.

%K nonn

%O 0,2

%A _R. H. Hardin_, Jan 03 2009

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Last modified June 21 15:21 EDT 2021. Contains 345364 sequences. (Running on oeis4.)