Expansion of (1+3*x^2+7*x^3+15*x^4+13*x^5+15*x^6+8*x^7+4*x^8)/((1-x)*(1-x^2)^3*(1-x^3)^2).

Terms

a(0) =1a(1) =1a(2) =7a(3) =16a(4) =46a(5) =92a(6) =197a(7) =346a(8) =616a(9) =989a(10) =1575a(11) =2352a(12) =3483a(13) =4928a(14) =6912a(15) =9390a(16) =12642a(17) =16617a(18) =21676a(19) =27742a(20) =35266a(21) =44164a(22) =54964a(23) =67574a(24) =82631a(25) =100009a(26) =120463a(27) =143858a(28) =171048a(29) =201888