Integers n such that 2*10^n + 81 is a prime number.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =6a(5) =7a(6) =8a(7) =15a(8) =36a(9) =38a(10) =51a(11) =168a(12) =1000a(13) =2955a(14) =8151a(15) =16456a(16) =17902a(17) =18784a(18) =24948a(19) =28731a(20) =87144