Numbers k such that 3^k + k^2 is prime.
A075898
Numbers k such that 3^k + k^2 is prime.
Terms
- a(0) =2a(1) =4a(2) =10a(3) =22a(4) =40a(5) =304a(6) =1582a(7) =3602a(8) =46162a(9) =127990
External references
- oeis: A075898
A075898
Numbers k such that 3^k + k^2 is prime.