Expansion of 1 / ((1-x)^4 - x^4)^2.

Terms

a(0) =1a(1) =8a(2) =36a(3) =120a(4) =332a(5) =816a(6) =1872a(7) =4160a(8) =9168a(9) =20224a(10) =44608a(11) =97920a(12) =213184a(13) =460032a(14) =985344a(15) =2099200a(16) =4455680a(17) =9431040a(18) =19911680a(19) =41932800a(20) =88083456a(21) =184578048a(22) =385929216a(23) =805355520a(24) =1677709312a(25) =3489529856a(26) =7247511552a(27) =15032156160a(28) =31138562048a(29) =64425099264