100638721

Properties

Appears in sequences

• 2nd Bernoulli polynomial evaluated at powers of 2 (multiplied by 6).at n=12A020527
• Primes p such that p = 2*phi(sigma((p-1)/2))+1.at n=8A260476
• Numbers k such that k = 2*phi(sigma((k-1)/2)) + 1.at n=18A266165
• Prime numbersat n=5796053