Riordan array (1/(1-x^2), x/(1+x)^2).

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =-2a(5) =1a(6) =0a(7) =4a(8) =-4a(9) =1a(10) =1a(11) =-6a(12) =11a(13) =-6a(14) =1a(15) =0a(16) =9a(17) =-24a(18) =22a(19) =-8a(20) =1a(21) =1a(22) =-12a(23) =46a(24) =-62a(25) =37a(26) =-10a(27) =1a(28) =0a(29) =16