-2765

Appears in sequences

• Expansion of Product_{k>=1} (1 - x^(2*k))^(2*k)/(1 - x^(2*k-1))^(2*k-1).at n=37A281781
• Expansion of Product_{k>=1} (1 - k*x^k)^(k^(k-1)).at n=5A295234
• Expansion of the Jacobi elliptic function sn(x,k) at k = 2 (odd powers only).at n=3A370542