a(n) = (prime(n)^5 - prime(n))/6.

Terms

a(0) =5a(1) =40a(2) =520a(3) =2800a(4) =26840a(5) =61880a(6) =236640a(7) =412680a(8) =1072720a(9) =3418520a(10) =4771520a(11) =11557320a(12) =19309360a(13) =24501400a(14) =38224160a(15) =69699240a(16) =119154040a(17) =140766040a(18) =225020840a(19) =300704880a(20) =345511920a(21) =512842720a(22) =656506760a(23) =930676560a(24) =1431223360