523777

Properties

Appears in sequences

• Numbers n such that p(n) + p(n+1) is a square and n is prime.at n=24A064398
• Primes of the form 1 + multiple perfect number.at n=5A093034
• a(n) = 2^(n-1)*(2^n - 1) + 1.at n=10A134169
• Primes of the form 2^j - 2^k + 1, where j > k >= 0.at n=41A152449
• Primes of the form 1 + triperfect numbers.at n=1A171266
• Primes of the form 2^k*(2^{phi(m)} - 1) + 1, where k and m are positive integers, and phi(.) is Euler's totient function.at n=31A234388
• Primes p such that q = p^2 - 2, r = q^2 - 2 and s = r^2 - 2 are also prime.at n=30A257552
• Prime numbersat n=43351