Number of semi-sums of strict integer partitions of n.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =2a(6) =5a(7) =6a(8) =9a(9) =13a(10) =21a(11) =26a(12) =37a(13) =48a(14) =63a(15) =86a(16) =108a(17) =139a(18) =175a(19) =223a(20) =274a(21) =350a(22) =422a(23) =527a(24) =638a(25) =783a(26) =939a(27) =1146a(28) =1371a(29) =1648