Expansion of Product_{k>=1} B(x^k), where B(x) is the g.f. of A111374.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =4a(5) =4a(6) =6a(7) =8a(8) =12a(9) =15a(10) =19a(11) =24a(12) =30a(13) =36a(14) =47a(15) =57a(16) =74a(17) =88a(18) =112a(19) =130a(20) =160a(21) =190a(22) =232a(23) =277a(24) =333a(25) =399a(26) =471a(27) =554a(28) =656a(29) =768