Primes in A046992.

Terms

a(0) =3a(1) =5a(2) =11a(3) =19a(4) =23a(5) =37a(6) =43a(7) =61a(8) =83a(9) =107a(10) =181a(11) =271a(12) =283a(13) =349a(14) =467a(15) =499a(16) =547a(17) =563a(18) =743a(19) =821a(20) =863a(21) =947a(22) =991a(23) =1013a(24) =1571a(25) =2341a(26) =2437a(27) =2633a(28) =2803a(29) =2837