Partial sums of A033617.

Terms

a(0) =1a(1) =5a(2) =14a(3) =31a(4) =59a(5) =100a(6) =156a(7) =229a(8) =322a(9) =439a(10) =585a(11) =765a(12) =981a(13) =1234a(14) =1525a(15) =1854a(16) =2223a(17) =2637a(18) =3103a(19) =3627a(20) =4213a(21) =4863a(22) =5575a(23) =6348a(24) =7184a(25) =8086a(26) =9059a(27) =10110a(28) =11246a(29) =12470