Primes in A073837.

Terms

a(0) =2a(1) =5a(2) =31a(3) =41a(4) =59a(5) =139a(6) =281a(7) =281a(8) =281a(9) =311a(10) =479a(11) =593a(12) =1153a(13) =1153a(14) =1283a(15) =1559a(16) =1559a(17) =2213a(18) =2213a(19) =2213a(20) =3167a(21) =3167a(22) =2963a(23) =2963a(24) =3067a(25) =3067a(26) =3181a(27) =3181a(28) =5153a(29) =6779