-1838

Appears in sequences

• G.f.: (1 - x/(1 - x^2/(1 - x^3/(1 - x^4/(1 - ...))))) * (1 + x/(1 + x^2/(1 + x^3/(1 + x^4/(1 + ...))))), a continued fraction.at n=27A285638
• Expansion of Product_{k>=1} (1 - x^k)^(k+1).at n=37A299019