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A153956 Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 7 ones in any 5 X 5 X 5 subtriangle. 0

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

%S 1,2,2,4,14,16,62,400,1312,8228,101575,539692,5945952,128078527,

%T 1209629759,22708191479,862913200941

%N Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 7 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 20 02:42 EDT 2024. Contains 373512 sequences. (Running on oeis4.)