-4482

Appears in sequences

• G.f.: Product_{m>0} (1 - x^m + 2!*x^(2*m) - 3!*x^(3*m) + 4!*x^(4*m)).at n=38A293256
• Expansion of Product_{k>=1} ((1 - 2*x^k)/(1 + 2*x^k))^(1/2).at n=15A303345