E.g.f.: tanh(arcsinh(x)*tan(x)) = 2/2!*x^2+4/4!*x^4-130/6!*x^6-6232/8!*x^8...
A012617
E.g.f.: tanh(arcsinh(x)*tan(x)) = 2/2!*x^2+4/4!*x^4-130/6!*x^6-6232/8!*x^8...
Terms
- a(0) =2a(1) =4a(2) =-130a(3) =-6232a(4) =-32102a(5) =18014060a(6) =2634330582a(7) =-33133771824
External references
- oeis: A012617