Numbers k such that 7*10^k + 33 is prime.

Terms

a(0) =1a(1) =2a(2) =6a(3) =10a(4) =17a(5) =29a(6) =53a(7) =107a(8) =133a(9) =596a(10) =852a(11) =1068a(12) =1186a(13) =1356a(14) =1673a(15) =1987a(16) =3170a(17) =3312a(18) =5819a(19) =6655a(20) =19267a(21) =20009a(22) =29302a(23) =72614a(24) =170348a(25) =178566