Expansion of g.f. x*(1-x+x^5+x^6-x^7+x^9)/(1-2*x+x^4+x^6-2*x^7+x^10).

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =14a(6) =26a(7) =48a(8) =89a(9) =165a(10) =304a(11) =559a(12) =1029a(13) =1893a(14) =3482a(15) =6404a(16) =11779a(17) =21666a(18) =39850a(19) =73296a(20) =134813a(21) =247961a(22) =456072a(23) =838847a(24) =1542881a(25) =2837801a(26) =5219530a(27) =9600212a(28) =17657543a(29) =32477286