Numbers k such that (10^(2*k+1)+15*10^k-1)/3 is prime.
A183177
Numbers k such that (10^(2*k+1)+15*10^k-1)/3 is prime.
Terms
- a(0) =1a(1) =7a(2) =85a(3) =94a(4) =273a(5) =356a(6) =1077a(7) =1797a(8) =6758a(9) =30232
External references
- oeis: A183177
A183177
Numbers k such that (10^(2*k+1)+15*10^k-1)/3 is prime.