E.g.f.: sqrt(2)*L / (Pi*(1 + 2*Sum_{n>=1} cos(2*Pi*n*x/L)/cosh(n*Pi) )) where L = Lemniscate constant.
A193541
E.g.f.: sqrt(2)*L / (Pi*(1 + 2*Sum_{n>=1} cos(2*Pi*n*x/L)/cosh(n*Pi) )) where L = Lemniscate constant.
Terms
- a(0) =1a(1) =1a(2) =-3a(3) =-27a(4) =441a(5) =11529a(6) =-442827a(7) =-23444883a(8) =1636819569a(9) =145703137041
External references
- oeis: A193541