Expansion of e.g.f.: sech(sec(x)*log(x+1))=1-1/2!*x^2+3/3!*x^3-18/4!*x^4+60/5!*x^5...
A012779
Expansion of e.g.f.: sech(sec(x)*log(x+1))=1-1/2!*x^2+3/3!*x^3-18/4!*x^4+60/5!*x^5...
Terms
- a(0) =1a(1) =0a(2) =-1a(3) =3a(4) =-18a(5) =60a(6) =-180a(7) =-1050a(8) =24192a(9) =-308952a(10) =3131760a(11) =-23742840a(12) =62587272a(13) =2606501040a(14) =-75839636600
External references
- oeis: A012779