29423

Properties

Appears in sequences

• a(n) is the least prime p, such that next_prime(2*p) - 2*p = 2*n - 1.at n=21A059846
• Positive integers m such that pi(m^2) = pi(j^2) + pi(k^2) for no 0 < j <= k < m.at n=54A262408
• Primes of the form abs(103*n^2 - 4707*n + 50383) in order of increasing nonnegative n.at n=5A267252
• Prime numbersat n=3197