Number of planar n X n X n binary triangular grids with no more than 2 ones in any 3 X 3 X 3 subtriangle.
A153523
Number of planar n X n X n binary triangular grids with no more than 2 ones in any 3 X 3 X 3 subtriangle.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =22a(4) =132a(5) =1204a(6) =13768a(7) =244089a(8) =6352095a(9) =232890454a(10) =12491887452a(11) =974287563383
External references
- oeis: A153523