Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 3 ones in any 4 X 4 X 4 subtriangle.
A153924
Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 3 ones in any 4 X 4 X 4 subtriangle.
Terms
- a(0) =1a(1) =2a(2) =50178a(3) =330289a(4) =4142724a(5) =38758787a(6) =721406196a(7) =10013654728a(8) =271477291887
External references
- oeis: A153924