sinh(tan(x)*arcsin(x))=2/2!*x^2+12/4!*x^4+310/6!*x^6+15960/8!*x^8...

A012380

sinh(tan(x)*arcsin(x))=2/2!*x^2+12/4!*x^4+310/6!*x^6+15960/8!*x^8...

Terms

    a(0) =2a(1) =12a(2) =310a(3) =15960a(4) =1275178a(5) =144435940a(6) =22125155806

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