Number of planar n X n X n binary triangular grids with no more than 6 ones in any similarly oriented 4 X 4 X 4 subtriangle.

A153560

Number of planar n X n X n binary triangular grids with no more than 6 ones in any similarly oriented 4 X 4 X 4 subtriangle.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =64a(4) =848a(5) =22202a(6) =1109397a(7) =104534239a(8) =18430578601

External references