Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with every one adjacent to exactly 1 other one.
A153983
Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with every one adjacent to exactly 1 other one.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =5a(5) =11a(6) =37a(7) =100a(8) =493a(9) =1878a(10) =13284a(11) =74395a(12) =745275a(13) =5833759a(14) =83605003a(15) =936808185a(16) =19121040653a(17) =305862769758
External references
- oeis: A153983