Expansion of 1/(1 - x^4/(1-x)^7).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =7a(6) =28a(7) =84a(8) =211a(9) =476a(10) =1029a(11) =2276a(12) =5384a(13) =13594a(14) =35371a(15) =91667a(16) =232681a(17) =577710a(18) =1413462a(19) =3442498a(20) =8414484a(21) =20717963a(22) =51346109a(23) =127678961a(24) =317496621a(25) =787941379a(26) =1950774874a(27) =4821609252a(28) =11910608942a(29) =29432604429