Number of series-reduced rooted trees whose leaves are integer partitions whose multiset union is an integer partition of n with no 1's.

A320293

Number of series-reduced rooted trees whose leaves are integer partitions whose multiset union is an integer partition of n with no 1's.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =3a(4) =3a(5) =9a(6) =11a(7) =30a(8) =45a(9) =112a(10) =195a(11) =475a(12) =901a(13) =2136a(14) =4349a(15) =10156a(16) =21565a(17) =50003a(18) =109325a(19) =252761a(20) =563785a(21) =1303296a(22) =2948555a(23) =6826494a(24) =15604053a(25) =36210591a(26) =83415487a(27) =194094257a(28) =449813607a(29) =1049555795

External references