Number of multisets of positive integers whose right half (exclusive) sums to n.

Terms

a(0) =1a(1) =2a(2) =7a(3) =13a(4) =27a(5) =37a(6) =73a(7) =89a(8) =156a(9) =205a(10) =315a(11) =387a(12) =644a(13) =749a(14) =1104a(15) =1442a(16) =2015a(17) =2453a(18) =3529a(19) =4239a(20) =5926a(21) =7360a(22) =9624a(23) =11842a(24) =16115a(25) =19445a(26) =25084a(27) =31137a(28) =39911a(29) =48374