A153531 - OEIS

%I #5 Apr 28 2021 00:03:12

%S 1,2,8,64,848,22118,1088504,99906335,16924655106,5358080457293,

%T 3167558708716057,3489738205098931415

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

%K nonn

%O 0,2

%A _R. H. Hardin_, Jan 01 2009