Partial sums of A048995.

Terms

a(0) =1a(1) =5a(2) =56a(3) =143a(4) =238a(5) =357a(6) =480a(7) =625a(8) =786a(9) =973a(10) =1178a(11) =1387a(12) =1602a(13) =1839a(14) =2084a(15) =2331a(16) =2592a(17) =2859a(18) =3134a(19) =3421a(20) =3710a(21) =4001a(22) =4304a(23) =4609a(24) =4930a(25) =5253a(26) =5578a(27) =5913a(28) =6254a(29) =6625