Numbers k such that (22*10^k + 71)/3 is prime.

Terms

a(0) =0a(1) =1a(2) =2a(3) =6a(4) =20a(5) =23a(6) =86a(7) =146a(8) =167a(9) =340a(10) =472a(11) =500a(12) =898a(13) =907a(14) =936a(15) =1133a(16) =2069a(17) =3166a(18) =4207a(19) =5275a(20) =9700a(21) =20407a(22) =28009a(23) =32923a(24) =53264