118187domain: NAppears in sequencesExpansion of e.g.f. tan(log(x+1) - sin(x)).at n=9A013212E.g.f.: arctanh(log(x+1)-sin(x)) = -1/2!*x^2 + 3/3!*x^3 - 6/4!*x^4 + 23/5!*x^5 + ...at n=9A013218a(n) = (2*n-1)*a(n-1) - a(n-2), a(0) = 0, a(1) = 1.at n=7A053984