Numbers k such that 22*10^k + 3 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =15a(5) =18a(6) =26a(7) =51a(8) =54a(9) =68a(10) =85a(11) =242a(12) =597a(13) =2335a(14) =3463a(15) =4160a(16) =5565a(17) =8322a(18) =11389a(19) =43982a(20) =70729a(21) =127645a(22) =151998