Expansion of (x*exp(x)/(exp(x)-1))^2 = sum(n>=0, a(n)/(n!*(n+1)!)*x^n).

A191368

Expansion of (x*exp(x)/(exp(x)-1))^2 = sum(n>=0, a(n)/(n!*(n+1)!)*x^n).

Terms

    a(0) =1a(1) =2a(2) =5a(3) =12a(4) =12a(5) =-120a(6) =-600a(7) =6720a(8) =84672a(9) =-1088640a(10) =-27216000a(11) =399168000a(12) =17337576960a(13) =-286858091520

External references