Numerators of coefficients in expansion of x^-2*(1-exp(-2*x))^2.

Terms

a(0) =4a(1) =-8a(2) =28a(3) =-8a(4) =248a(5) =-16a(6) =508a(7) =-136a(8) =584a(9) =-496a(10) =16376a(11) =-16a(12) =131056a(13) =-174752a(14) =18724a(15) =-2056a(16) =1048568a(17) =-1168a(18) =4194296a(19) =-20336a(20) =684784a(21) =-1945184a(22) =67108856a(23) =-3856a(24) =536870896a(25) =-715827872a(26) =306783376a(27) =-19746976a(28) =17179869152a(29) =-3198784