Expansion of Product_{n>=1} 1/sqrt(1 + (4*x)^n).

Terms

a(0) =1a(1) =-2a(2) =-2a(3) =-36a(4) =54a(5) =-476a(6) =556a(7) =-6088a(8) =35878a(9) =-156844a(10) =444164a(11) =-1734648a(12) =11948604a(13) =-35313048a(14) =156354328a(15) =-864527760a(16) =4733447686a(17) =-12692853452a(18) =54065039380a(19) =-226098757912