Numbers k such that 2^prime(k) - 1 + 10^k is prime.
A114056
Numbers k such that 2^prime(k) - 1 + 10^k is prime.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =7a(4) =8a(5) =222a(6) =227a(7) =360a(8) =535a(9) =2713a(10) =9079a(11) =22579a(12) =26656
External references
- oeis: A114056