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%I #7 Apr 28 2021 00:05:09
%S 1,2,8,64,848,9949,294074,15816643,1445464075,209860060542
%N Number of planar n X n X n binary triangular grids with no more than 6 ones in any 5 X 5 X 5 subtriangle.
%K nonn
%O 0,2
%A _R. H. Hardin_, Jan 01 2009