38725632

Appears in sequences

• cos(tan(x)-arctan(x))=1-160/6!*x^6+1792/8!*x^8-484224/10!*x^10...at n=6A013444
• Expansion of e.g.f.: exp(tanh(x)-arctanh(x))=1-4/3!*x^3-8/5!*x^5+160/6!*x^6-992/7!*x^7...at n=12A013496