Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 10 ones in any 5 X 5 X 5 subtriangle.
A153992
Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 10 ones in any 5 X 5 X 5 subtriangle.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =16a(4) =64a(5) =447a(6) =3366a(7) =48406a(8) =708304a(9) =19960973a(10) =570218721a(11) =31360806160
External references
- oeis: A153992