-180612096domain: ZAppears in sequencesExpansion of log(1+sin(tanh(x))).at n=14A009330Expansion of log(1+tanh(tan(x))).at n=14A009386log(cos(tanh(x)))=-1/2!*x^2+6/4!*x^4-72/6!*x^6+1456/8!*x^8...at n=6A012242