-16968

Appears in sequences

• Expansion of sin(x)*cosh(log(1+x)).at n=8A009537
• tanh(sinh(x)*tan(x)) = 2/2!*x^2 + 12/4!*x^4 - 98/6!*x^6 - 16968/8!*x^8 - ...at n=4A009816
• Expansion of e.g.f. arctan(sinh(x)*tan(x)) (even powers only).at n=4A012548
• Duplicate of A009816.at n=3A012550