The isolated nonprimes that are the sum of two successive primes.

Terms

a(0) =12a(1) =18a(2) =30a(3) =42a(4) =60a(5) =138a(6) =198a(7) =240a(8) =462a(9) =600a(10) =618a(11) =810a(12) =828a(13) =882a(14) =1230a(15) =1290a(16) =1320a(17) =1428a(18) =1482a(19) =1620a(20) =1668a(21) =1722a(22) =1878a(23) =2088a(24) =2112a(25) =2688a(26) =2970a(27) =3330a(28) =3390a(29) =3768