Absolute values of numerators of series expansion of sinh(x)/sqrt((cosh(x))^2+(sinh(x))^2) about 0 (odd indexed coefficients only).

A128275

Absolute values of numerators of series expansion of sinh(x)/sqrt((cosh(x))^2+(sinh(x))^2) about 0 (odd indexed coefficients only).

Terms

    a(0) =1a(1) =5a(2) =121a(3) =1369a(4) =698161a(5) =22394737a(6) =25947503401a(7) =29819441791

External references