Integers k such that 10^k + 63 is a prime number.

Terms

a(0) =1a(1) =2a(2) =3a(3) =11a(4) =12a(5) =37a(6) =42a(7) =64a(8) =101a(9) =131a(10) =170a(11) =366a(12) =404a(13) =771a(14) =1454a(15) =1696a(16) =4415a(17) =5208a(18) =9027a(19) =10978a(20) =11264a(21) =11651a(22) =14432a(23) =20655a(24) =28220a(25) =34623a(26) =62523a(27) =63986