Number of planar n X n X n binary triangular grids with no more than 7 ones in any similarly oriented 4 X 4 X 4 subtriangle.

A153561

Number of planar n X n X n binary triangular grids with no more than 7 ones in any similarly oriented 4 X 4 X 4 subtriangle.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =64a(4) =968a(5) =28794a(6) =1676720a(7) =190753044a(8) =42330133212

External references