38369

Appears in sequences

• Diagonal sums of number array A082110.at n=16A082114
• Numbers n such that phi(n)=2*phi(n-1).at n=30A171271
• 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=35A323271
• a(1) = a(2) = 1; a(n+2) = 1 + Sum_{d|n} a(n/d) * a(d).at n=27A346116