Number of series-reduced rooted trees whose leaves are integer partitions whose multiset union is an integer partition of n.
A319312
Number of series-reduced rooted trees whose leaves are integer partitions whose multiset union is an integer partition of n.
Terms
- a(0) =1a(1) =3a(2) =7a(3) =22a(4) =67a(5) =242a(6) =885a(7) =3456a(8) =13761a(9) =56342a(10) =234269a(11) =989335a(12) =4225341a(13) =18231145a(14) =79321931a(15) =347676128a(16) =1533613723a(17) =6803017863a(18) =30328303589a(19) =135808891308a(20) =610582497919
External references
- oeis: A319312