80513

Properties

Appears in sequences

• Numbers k such that (x^k + 1/x^k)/(x + 1/x) is prime, where x = sqrt(3) + sqrt(2).at n=8A158892
• Odd primes of the form (1+n)*(2+2*n)+n*(3+2*n) = 4*n^2+7*n+2.at n=35A171749
• Primes p such that if q is the next prime, the sum (with multiplicity) of prime factors of p^2 + q^2 is a square.at n=24A359443
• G.f. A(x) satisfies A(x) = 1 / ((1 - x) * (1 - x * A(x^4))).at n=27A367692
• Prime numbersat n=7880