26813

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 85.at n=21A020424
• a(1) = 2; a(n) is the smallest prime > a(n-1) such that a(n) + a(n-1) is a square.at n=24A062064
• Primes which remain prime after one and after two applications of the rotate-and-add operation of A086002.at n=18A086003
• a(n) = (A085249(n) - 1)/6.at n=28A088349
• Odd primes of the form (1+n)*(2+2*n)+n*(3+2*n) = 4*n^2+7*n+2.at n=23A171749
• Primes having primitive roots 2, 3, 5, 7, 11, and 13.at n=22A241047
• Primes p such that the sum of cubes of the 4 consecutive primes starting with p is twice a prime.at n=30A368637
• Prime numbersat n=2941