Numbers k such that gcd(2^k + 1, k! - 1) has a prime divisor different from 2*k + 1.
A366824
Numbers k such that gcd(2^k + 1, k! - 1) has a prime divisor different from 2*k + 1.
Terms
- a(0) =221799a(1) =300081a(2) =338884a(3) =3652374a(4) =8161701a(5) =10802625a(6) =13602835a(7) =18004375a(8) =80187723a(9) =133646205
External references
- oeis: A366824