249397

Properties

Appears in sequences

• Primes p such that q = p^2 - 2, r = q^2 - 2 and s = r^2 - 2 are also prime.at n=20A257552
• Number of different values of (x_n, x_1*x_2*...*x_n) where x_1=1 and x_i-x_{i-1} is 0 or 1.at n=22A334636
• Primes p such that p^6 - 1 has 384 divisors.at n=32A341666
• Number of compositions of n with all adjacent parts (x, y) satisfying x >= 2y or y > 2x.at n=31A342334
• Prime numbersat n=21994