Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 6 ones in any 5 X 5 X 5 subtriangle.
A153951
Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 6 ones in any 5 X 5 X 5 subtriangle.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =16a(4) =48a(5) =181a(6) =930a(7) =8275a(8) =75027a(9) =1115868a(10) =15698357a(11) =385413794a(12) =9296853593a(13) =385316885091
External references
- oeis: A153951