Expansion of 1/((1-x^2)(1-5x+x^2)).

Terms

a(0) =1a(1) =5a(2) =25a(3) =120a(4) =576a(5) =2760a(6) =13225a(7) =63365a(8) =303601a(9) =1454640a(10) =6969600a(11) =33393360a(12) =159997201a(13) =766592645a(14) =3672966025a(15) =17598237480a(16) =84318221376a(17) =403992869400