Expansion of 1/(1 - x^5/(1-x)^7).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =7a(7) =28a(8) =84a(9) =210a(10) =463a(11) =938a(12) =1821a(13) =3563a(14) =7385a(15) =16577a(16) =39529a(17) =96315a(18) =232393a(19) =546806a(20) =1251461a(21) =2801015a(22) =6189683a(23) =13647361a(24) =30281870a(25) =67918782a(26) =153939843a(27) =351309676a(28) =803438125a(29) =1834160110