Total number of parts in all partitions of n plus the sum of largest parts of all partitions of n.

Terms

a(0) =0a(1) =2a(2) =6a(3) =12a(4) =24a(5) =40a(6) =70a(7) =108a(8) =172a(9) =256a(10) =384a(11) =550a(12) =798a(13) =1112a(14) =1560a(15) =2136a(16) =2926a(17) =3930a(18) =5288a(19) =6996a(20) =9260a(21) =12104a(22) =15798a(23) =20412a(24) =26348a(25) =33702a(26) =43044a(27) =54588a(28) =69090a(29) =86906