Integers k such that 10^k+57 is a prime number.

Terms

a(0) =1a(1) =2a(2) =5a(3) =11a(4) =22a(5) =30a(6) =31a(7) =43a(8) =44a(9) =64a(10) =107a(11) =191a(12) =2149a(13) =3174a(14) =4952a(15) =12126a(16) =29884a(17) =32645a(18) =48442a(19) =60959a(20) =62750a(21) =87408a(22) =95326