119583

Appears in sequences

• G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n*A(-x)^A003059(n+1), where A003059 is defined by "n appears 2n-1 times.".at n=16A193050
• Let p = n-th prime == 3 mod 8; a(n) = (sum of quadratic residues mod p that are < p/2) + (sum of all quadratic residues mod p).at n=30A282727
• Sum of all squarefree semiprimes with greater prime factor prime(n).at n=26A339194