Partial sums of A106116.

Terms

a(0) =2a(1) =5a(2) =10a(3) =17a(4) =40a(5) =69a(6) =106a(7) =149a(8) =196a(9) =249a(10) =308a(11) =375a(12) =448a(13) =527a(14) =610a(15) =699a(16) =796a(17) =1019a(18) =1246a(19) =1475a(20) =1708a(21) =1947a(22) =2204a(23) =2467a(24) =2736a(25) =3013a(26) =3296a(27) =3589a(28) =3926a(29) =4273