Dirichlet self-convolution of the integer partition numbers A000041.

Terms

a(0) =1a(1) =1a(2) =4a(3) =6a(4) =14a(5) =14a(6) =34a(7) =30a(8) =64a(9) =69a(10) =112a(11) =112a(12) =228a(13) =202a(14) =330a(15) =394a(16) =575a(17) =594a(18) =956a(19) =980a(20) =1492a(21) =1674a(22) =2228a(23) =2510a(24) =3700a(25) =3965a(26) =5276a(27) =6200a(28) =8126a(29) =9130