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

Terms

a(0) =1a(1) =2a(2) =2a(3) =-2a(4) =8a(5) =-10a(6) =6a(7) =26a(8) =-108a(9) =258a(10) =-342a(11) =-194a(12) =2700a(13) =-8994a(14) =17830a(15) =-12878a(16) =-61910a(17) =322110a(18) =-860106a(19) =1284546a(20) =571880a(21) =-10749654a(22) =38883554a(23) =-82867578a(24) =68869212a(25) =286234558a(26) =-1619591538a(27) =4559780610a(28) =-7250287740a(29) =-2206074398