Sum of consecutives primes p and q where p == 3 mod (10) and q == 7 mod (10).

Terms

a(0) =30a(1) =90a(2) =210a(3) =240a(4) =330a(5) =390a(6) =450a(7) =600a(8) =630a(9) =930a(10) =1230a(11) =1290a(12) =1350a(13) =1560a(14) =1650a(15) =1710a(16) =1740a(17) =1770a(18) =1920a(19) =2190a(20) =2430a(21) =2610a(22) =2850a(23) =2970a(24) =3180a(25) =3330a(26) =3390a(27) =3570a(28) =3750a(29) =3990