Number of partitions of (2, n) into a sum of distinct pairs.

Terms

a(0) =1a(1) =3a(2) =5a(3) =9a(4) =14a(5) =21a(6) =31a(7) =44a(8) =61a(9) =83a(10) =112a(11) =148a(12) =194a(13) =251a(14) =322a(15) =410a(16) =518a(17) =649a(18) =809a(19) =1002a(20) =1234a(21) =1513a(22) =1846a(23) =2242a(24) =2712a(25) =3268a(26) =3923a(27) =4694a(28) =5598a(29) =6655