342793

Appears in sequences

• A Somos 9-type recurrence: a(n) = (3*a(n-1)*a(n-8) - a(n-4)*a(n-5))/a(n-9), with a(0)=...=a(8)=1.at n=19A122055
• Composite numbers k such that b^k == b (mod sigma(k)) for every integer b.at n=10A277286