132721

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 48.at n=4A031636
• Primes of the form 1+2*n+3*n^2.at n=30A122430
• Prime numbers p such that 3*p - 2 is the square of a prime number.at n=31A289135
• Number of subsets of the first n primes whose elements have a prime root-mean-square.at n=26A339556
• Prime numbersat n=12391