Number of sets of nonempty sets whose multiset union is a strongly normal multiset of size n.

A318402

Number of sets of nonempty sets whose multiset union is a strongly normal multiset of size n.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =20a(4) =74a(5) =311a(6) =1401a(7) =6913a(8) =36376a(9) =205421a(10) =1228288a(11) =7786802a(12) =51937607a(13) =364250763a(14) =2673314121a(15) =20504809133a(16) =163844631872

External references