tanh(sinh(x)*arctan(x))=2/2!*x^2-4/4!*x^4-130/6!*x^6+2200/8!*x^8...
A012561
tanh(sinh(x)*arctan(x))=2/2!*x^2-4/4!*x^4-130/6!*x^6+2200/8!*x^8...
Terms
- a(0) =2a(1) =-4a(2) =-130a(3) =2200a(4) =151258a(5) =-9618860a(6) =-546359658a(7) =83826810288
External references
- oeis: A012561