36305

Appears in sequences

• Composite squarefree numbers n such that p(i)-4 divides n+4, where p(i) are the prime factors of n.at n=17A225704
• a(n) = 2^n * Sum_{k=0..n} k^p*q^k, where p=3, q=-1/2.at n=19A232604
• Numbers of the form p*q*r where p, q, r are distinct primes congruent to 1 mod 4 such that Legendre(p/q) = Legendre(p/r) = Legendre(q/r) = -1.at n=33A323271
• Number of subsets of the first n primes whose elements have a prime root-mean-square.at n=24A339556
• Dirichlet g.f.: zeta(s-3)^2 * (1 - 2^(4-s)) / zeta(s).at n=20A369101
• a(n) = Sum_{1 <= x_1, x_2, x_3 <= n} gcd(x_1, x_2, x_3, n)^3.at n=20A372928