-48897domain: ZAppears in sequencesarcsinh(arcsinh(x)+arctan(x))=2*x-11/3!*x^3+441/5!*x^5-48897/7!*x^7...at n=3A013109Expansion of (1-x)/(1-x+2*x^2-x^3).at n=38A078019Expansion of 1/(1 + 2*x + 3*x^2 + x^3).at n=25A127896a(0)=-1, a(1)=0, a(2)=1, a(n) = a(n-1) - 2*a(n-2) + a(n-3).at n=40A141576