Expansion of -x^2/(136*x^2+2*x-1).

Terms

a(0) =0a(1) =1a(2) =2a(3) =140a(4) =552a(5) =20144a(6) =115360a(7) =2970304a(8) =21629568a(9) =447220480a(10) =3836062208a(11) =68494109696a(12) =658692679680