Number of separable partitions of n; see Comments.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =6a(7) =10a(8) =14a(9) =19a(10) =26a(11) =37a(12) =49a(13) =66a(14) =87a(15) =116a(16) =152a(17) =198a(18) =254a(19) =329a(20) =422a(21) =536a(22) =678a(23) =858a(24) =1077a(25) =1349a(26) =1681a(27) =2089a(28) =2587a(29) =3193