A153568 - OEIS

A153568

Number of planar n X n X n binary triangular grids with no more than 6 ones in any similarly oriented 5 X 5 X 5 subtriangle.

%I #5 Apr 28 2021 00:10:50

%S 1,2,8,64,848,9949,298247,16406435,1545911495,236576023548,

%T 58010755690276,25220215282781623

%N Number of planar n X n X n binary triangular grids with no more than 6 ones in any similarly oriented 5 X 5 X 5 subtriangle.

%K nonn

%O 0,2

%A _R. H. Hardin_, Jan 01 2009