Number of integer partitions of 2n whose distinct parts sum to n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =3a(5) =4a(6) =12a(7) =11a(8) =19a(9) =23a(10) =54a(11) =55a(12) =103a(13) =115a(14) =178a(15) =289a(16) =389a(17) =507a(18) =757a(19) =970a(20) =1343a(21) =2033a(22) =2579a(23) =3481a(24) =4840a(25) =6312a(26) =8317a(27) =10998a(28) =15459a(29) =19334