Number of planar n X n X n binary triangular grids with no more than 1 one in any 3 X 3 X 3 subtriangle.
A153550
Number of planar n X n X n binary triangular grids with no more than 1 one in any 3 X 3 X 3 subtriangle.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =7a(4) =21a(5) =76a(6) =276a(7) =1348a(8) =8261a(9) =57523a(10) =494123a(11) =5241083a(12) =66302797a(13) =1017030742a(14) =19028971842a(15) =430245073504
External references
- oeis: A153550