Number of planar n X n X n binary triangular grids with no more than 2 ones in any similarly oriented 5 X 5 X 5 subtriangle.

A153564

Number of planar n X n X n binary triangular grids with no more than 2 ones in any similarly oriented 5 X 5 X 5 subtriangle.

Terms

    a(0) =1a(1) =2a(2) =7a(3) =22a(4) =56a(5) =121a(6) =603a(7) =4292a(8) =34905a(9) =284158a(10) =2388099a(11) =29265021a(12) =473031984a(13) =9304582753a(14) =212580151667

External references