Sum of products of cubes of parts , counted without multiplicity, in all partitions of n.

Terms

a(0) =1a(1) =1a(2) =9a(3) =36a(4) =108a(5) =449a(6) =1212a(7) =4499a(8) =10914a(9) =43286a(10) =103296a(11) =306994a(12) =867763a(13) =2165484a(14) =6627800a(15) =16827227a(16) =42203212a(17) =104397436a(18) =282967414a(19) =632194758a(20) =1809241372a(21) =4120266946a(22) =10256452121a(23) =23140530512a(24) =55030272918a(25) =130803096050a(26) =291295024121a(27) =739011803928