sinh(sec(x)*arctan(x))=x+2/3!*x^3+40/5!*x^5+576/7!*x^7+46208/9!*x^9...
A012807
sinh(sec(x)*arctan(x))=x+2/3!*x^3+40/5!*x^5+576/7!*x^7+46208/9!*x^9...
Terms
- a(0) =1a(1) =2a(2) =40a(3) =576a(4) =46208a(5) =1293184a(6) =309637120a(7) =5786437632
External references
- oeis: A012807