Partial sums of A160120.

Terms

a(0) =0a(1) =1a(2) =5a(3) =12a(4) =28a(5) =47a(6) =75a(7) =112a(8) =170a(9) =237a(10) =313a(11) =398a(12) =504a(13) =625a(14) =767a(15) =936a(16) =1156a(17) =1403a(18) =1659a(19) =1924a(20) =2210a(21) =2511a(22) =2833a(23) =3182a(24) =3582a(25) =4015a(26) =4469a(27) =4950a(28) =5482a(29) =6065