81335

Appears in sequences

• Expansion of Product_{k>=1} (1 - x^k)^k/(1 - x^(4*k))^(4*k).at n=40A285284
• G.f.: Sum_{n>=0} x^n * ((1+x)^n + sqrt(2)*i)^n / (1 + sqrt(2)*i*x*(1+x)^n)^(n+1), where i^2 = -1.at n=9A323682