Numbers k such that (7*10^(2*k+1) - 9*10^k - 7)/9 is prime.
A183181
Numbers k such that (7*10^(2*k+1) - 9*10^k - 7)/9 is prime.
Terms
- a(0) =4a(1) =5a(2) =8a(3) =11a(4) =1244a(5) =1685a(6) =2009a(7) =14657a(8) =15118a(9) =20332a(10) =50830a(11) =75062
External references
- oeis: A183181