Expansion of 2*(2*x+1)/((x+1)*(sqrt(4*x+1)+1)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =-1a(4) =5a(5) =-19a(6) =67a(7) =-232a(8) =804a(9) =-2806a(10) =9878a(11) =-35072a(12) =125512a(13) =-452388a(14) =1641028a(15) =-5986993a(16) =21954973a(17) =-80884423a(18) =299233543a(19) =-1111219333a(20) =4140813373a(21) =-15478839553a(22) =58028869153a(23) =-218123355523a(24) =821908275547