A153570 - OEIS

A153570

Number of planar n X n X n binary triangular grids with no more than 8 ones in any similarly oriented 5 X 5 X 5 subtriangle.

%I #5 Apr 28 2021 00:11:06

%S 1,2,8,64,1013,22819,1080723,98064835,16728055591,5280106993017,

%T 3064935209805679

%N Number of planar n X n X n binary triangular grids with no more than 8 ones in any similarly oriented 5 X 5 X 5 subtriangle.

%K nonn

%O 0,2

%A _R. H. Hardin_, Jan 01 2009