Numbers n such that 7*10^n-3 is prime.

Terms

a(0) =1a(1) =3a(2) =4a(3) =6a(4) =10a(5) =20a(6) =51a(7) =138a(8) =190a(9) =360a(10) =378a(11) =393a(12) =1384a(13) =1594a(14) =2759a(15) =2868a(16) =5395a(17) =7494a(18) =10491a(19) =11199a(20) =12190a(21) =33594a(22) =38256a(23) =89169a(24) =165916