Number of planar n X n X n binary triangular grids with no more than 2 ones in any similarly oriented 2 X 2 X 2 subtriangle.

A153549

Number of planar n X n X n binary triangular grids with no more than 2 ones in any similarly oriented 2 X 2 X 2 subtriangle.

Terms

    a(0) =1a(1) =2a(2) =7a(3) =45a(4) =523a(5) =11039a(6) =422661a(7) =29363700a(8) =3701326718a(9) =846522284413

External references