Sum of all the parts in the partitions of 5n into 5 parts.

Terms

a(0) =0a(1) =5a(2) =70a(3) =450a(4) =1680a(5) =4800a(6) =11310a(7) =23590a(8) =44600a(9) =78615a(10) =130550a(11) =207075a(12) =315600a(13) =465790a(14) =667940a(15) =935250a(16) =1281520a(17) =1723970a(18) =2280330a(19) =2972455a(20) =3822500a(21) =4857510a(22) =6104560a(23) =7596325a(24) =9365400a(25) =11450750a(26) =13890760a(27) =16731225a(28) =20017060a(29) =23801315