Number of non-isomorphic balanced multiset partitions of weight n.

Terms

a(0) =1a(1) =1a(2) =0a(3) =4a(4) =7a(5) =16a(6) =52a(7) =206a(8) =444a(9) =1624a(10) =5462a(11) =19188a(12) =62890a(13) =215367a(14) =765694a(15) =2854202a(16) =10634247a(17) =39842786a(18) =150669765a(19) =581189458a(20) =2287298588a(21) =9157598354a(22) =37109364812a(23) =151970862472a(24) =629048449881