Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 8 ones in any 5 X 5 X 5 subtriangle.
A153963
Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 8 ones in any 5 X 5 X 5 subtriangle.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =16a(4) =61a(5) =331a(6) =2182a(7) =26179a(8) =323131a(9) =7261166a(10) =162366708a(11) =6677383044a(12) =277240875794
External references
- oeis: A153963