Numbers k such that (25*10^k + 23)/3 is prime.

Terms

a(0) =4a(1) =8a(2) =11a(3) =12a(4) =16a(5) =20a(6) =22a(7) =34a(8) =35a(9) =38a(10) =51a(11) =52a(12) =106a(13) =135a(14) =168a(15) =189a(16) =194a(17) =224a(18) =482a(19) =3456a(20) =4832a(21) =36022a(22) =52119