%I #5 Apr 28 2021 00:10:15
%S 1,2,8,64,1023,32677,2085852,266072543,67825229274,34550724745098,
%T 35172054875041935,71550556026385872065,290872707932040590253421,
%U 2363021239114367414096994640,38362505723755284120569710614165
%N Number of planar n X n X n binary triangular grids with no more than 9 ones in any similarly oriented 4 X 4 X 4 subtriangle.
%K nonn
%O 0,2
%A _R. H. Hardin_, Jan 01 2009