Number of planar n X n X n binary triangular grids with no more than 5 ones in any similarly oriented 4 X 4 X 4 subtriangle.

A153559

Number of planar n X n X n binary triangular grids with no more than 5 ones in any similarly oriented 4 X 4 X 4 subtriangle.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =63a(4) =638a(5) =13426a(6) =519839a(7) =35668242a(8) =4237905865a(9) =910482241277

External references