Expansion of Product_{n>=1} ((1 + (2*x)^n)/(1 - (2*x)^n))^(1/2).

Terms

a(0) =1a(1) =2a(2) =6a(3) =20a(4) =54a(5) =156a(6) =444a(7) =1192a(8) =3174a(9) =8620a(10) =22516a(11) =58392a(12) =151996a(13) =387352a(14) =984888a(15) =2507088a(16) =6270854a(17) =15659724a(18) =39067588a(19) =96454072a(20) =237663444a(21) =584266696a(22) =1425921992a(23) =3470869296a(24) =8431325916a(25) =20380759544a(26) =49122457608a(27) =118178637040a(28) =283150466232a(29) =676768288176