Numbers n such that 6*10^n-7 is prime.

Terms

a(0) =1a(1) =2a(2) =5a(3) =6a(4) =7a(5) =11a(6) =17a(7) =29a(8) =42a(9) =47a(10) =96a(11) =108a(12) =166a(13) =210a(14) =331a(15) =1022a(16) =3593a(17) =4426a(18) =5704a(19) =13936a(20) =16486a(21) =85910