%I #5 Apr 28 2021 00:06:07
%S 1,2,8,64,1023,27824,1517143,160069345,32351867720,12445823725343
%N Number of planar n X n X n binary triangular grids with no more than 9 ones in any 5 X 5 X 5 subtriangle.
%K nonn
%O 0,2
%A _R. H. Hardin_, Jan 01 2009