Number of indecomposable slim semimodular lattices of length n.

A217945

Number of indecomposable slim semimodular lattices of length n.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =2a(4) =8a(5) =39a(6) =242a(7) =1759a(8) =14674a(9) =137127a(10) =1416430a(11) =16006403a(12) =196400810

External references