Real part of the coefficient [x^n] of the expansion of (1+i)/(1-i*exp(x)) - 1 multiplied by 2*n!, where i is the imaginary unit.
A163982
Real part of the coefficient [x^n] of the expansion of (1+i)/(1-i*exp(x)) - 1 multiplied by 2*n!, where i is the imaginary unit.
Terms
- a(0) =-2a(1) =-1a(2) =1a(3) =2a(4) =-5a(5) =-16a(6) =61a(7) =272a(8) =-1385a(9) =-7936a(10) =50521a(11) =353792a(12) =-2702765a(13) =-22368256a(14) =199360981a(15) =1903757312a(16) =-19391512145a(17) =-209865342976
External references
- oeis: A163982