Number of series-reduced balanced rooted identity trees whose leaves are integer partitions whose multiset union is an integer partition of n.

A320172

Number of series-reduced balanced rooted identity trees whose leaves are integer partitions whose multiset union is an integer partition of n.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =9a(4) =19a(5) =38a(6) =79a(7) =163a(8) =352a(9) =750a(10) =1633a(11) =3558a(12) =7783a(13) =17020a(14) =37338a(15) =81920a(16) =180399a(17) =398600a(18) =885101a(19) =1975638a(20) =4435741a(21) =10013855a(22) =22726109a(23) =51807432a(24) =118545425a(25) =272024659a(26) =625488420a(27) =1440067761a(28) =3317675261a(29) =7644488052

External references