1795927225domain: NAppears in sequencesExpansion of e.g.f. log(1 + tan(sin(x))).at n=13A009364arctanh(tan(sin(x)))=x+3/3!*x^3+41/5!*x^5+1467/7!*x^7+100625/9!*x^9...at n=6A012147