Expansion of ( 1 + 4 * Sum_{k>=0} x^(2^k)/(1 - x^(2^k))^2 )^(1/2).

Terms

a(0) =1a(1) =2a(2) =4a(3) =-2a(4) =10a(5) =-2a(6) =-20a(7) =82a(8) =-108a(9) =-114a(10) =1052a(11) =-2702a(12) =2054a(13) =11394a(14) =-52636a(15) =99534a(16) =32938a(17) =-831698a(18) =2649676a(19) =-3119694a(20) =-8779530a(21) =54334130a(22) =-125649628a(23) =31877726a(24) =849214460a(25) =-3274210670a(26) =5129552132a(27) =7097067566a(28) =-65583106070a(29) =180299051838