46979

Appears in sequences

• Numerators of continued fraction convergents to sqrt(559).at n=8A042070
• Smallest solution m to (n+1)*phi(m) = n*sigma(m), or -1 if no solution exists.at n=42A065824
• a(n) = A065824(A047845(n+1)).at n=20A065884
• Least positive number k such that 2^k mod k = 2n+1, or 0 if no such k exists.at n=27A124977
• Semiprimes p*q with p < q and 2^p (mod q) == 2^q (mod p).at n=36A179839
• Lucas pseudoprimes.at n=34A217120