Number of partitions of (4, n) into a sum of distinct pairs.

Terms

a(0) =2a(1) =7a(2) =14a(3) =27a(4) =46a(5) =74a(6) =116a(7) =174a(8) =254a(9) =363a(10) =510a(11) =703a(12) =957a(13) =1285a(14) =1706a(15) =2244a(16) =2924a(17) =3777a(18) =4844a(19) =6168a(20) =7802a(21) =9813a(22) =12272a(23) =15267a(24) =18902a(25) =23295a(26) =28584a(27) =34935a(28) =42532a(29) =51592