-4416

Appears in sequences

• a(n) = 2^phi(n) - Sum_{j=0..n} binomial(phi(n), phi(j)).at n=41A073318
• Expansion of 1/(theta_3(q) * theta_3(q^2)), where theta_3() is the Jacobi theta function.at n=21A320069
• A(n, k) = (m*k)! [x^k] MittagLefflerE(m, x)^(-n), for m = 2, n >= 0, k >= 0; square array read by descending antidiagonals.at n=51A326327
• Expansion of g.f.: 1/(Sum_{p prime} x^p)^2.at n=15A352500