Number of partitions of (5, n) into a sum of distinct pairs.

Terms

a(0) =3a(1) =10a(2) =21a(3) =42a(4) =74a(5) =123a(6) =197a(7) =303a(8) =452a(9) =659a(10) =943a(11) =1323a(12) =1830a(13) =2496a(14) =3363a(15) =4485a(16) =5922a(17) =7748a(18) =10058a(19) =12958a(20) =16578a(21) =21077a(22) =26637a(23) =33476a(24) =41855a(25) =52077a(26) =64496a(27) =79536a(28) =97683a(29) =119505