Smallest prime in decomposition of 2n into sum of two odd primes.

Terms

a(0) =3a(1) =3a(2) =3a(3) =5a(4) =3a(5) =3a(6) =5a(7) =3a(8) =3a(9) =5a(10) =3a(11) =5a(12) =7a(13) =3a(14) =3a(15) =5a(16) =7a(17) =3a(18) =5a(19) =3a(20) =3a(21) =5a(22) =3a(23) =5a(24) =7a(25) =3a(26) =5a(27) =7a(28) =3a(29) =3