Number of labeled vertically indecomposable lattices with a fixed top and bottom.

A058805

Number of labeled vertically indecomposable lattices with a fixed top and bottom.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =0a(4) =1a(5) =7a(6) =97a(7) =1981a(8) =56611a(9) =2151857a(10) =104905809a(11) =6375234313a(12) =472007532691

External references