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

Terms

a(0) =3a(1) =17a(2) =29a(3) =74a(4) =98a(5) =167a(6) =241a(7) =313a(8) =490a(9) =580a(10) =734a(11) =899a(12) =1069a(13) =1307a(14) =1528a(15) =1885a(16) =2065a(17) =2339a(18) =2695a(19) =2911a(20) =3391a(21) =3892a(22) =4349a(23) =4844a(24) =5249a(25) =5453a(26) =5882a(27) =6752a(28) =7211a(29) =8503