arcsinh(tanh(x)+arctan(x))=2*x-12/3!*x^3+488/5!*x^5-55552/7!*x^7...
A013147
arcsinh(tanh(x)+arctan(x))=2*x-12/3!*x^3+488/5!*x^5-55552/7!*x^7...
Terms
- a(0) =2a(1) =-12a(2) =488a(3) =-55552a(4) =12546944a(5) =-4711567872
External references
- oeis: A013147