a(n) = (p+1)*(p+2)*(p+3)/6 where p is the n-th prime.

Terms

a(0) =10a(1) =20a(2) =56a(3) =120a(4) =364a(5) =560a(6) =1140a(7) =1540a(8) =2600a(9) =4960a(10) =5984a(11) =9880a(12) =13244a(13) =15180a(14) =19600a(15) =27720a(16) =37820a(17) =41664a(18) =54740a(19) =64824a(20) =70300a(21) =88560a(22) =102340a(23) =125580a(24) =161700a(25) =182104a(26) =192920a(27) =215820a(28) =227920a(29) =253460