Expansion of g.f.: (1+2*x^3+2*x^6)/((1-x)*(1-x-x^2+x^3-x^4-x^5+x^6)).

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =14a(5) =24a(6) =40a(7) =65a(8) =104a(9) =164a(10) =258a(11) =404a(12) =632a(13) =986a(14) =1537a(15) =2394a(16) =3728a(17) =5804a(18) =9034a(19) =14060a(20) =21880a(21) =34049a(22) =52984a(23) =82448a(24) =128294a(25) =199632a(26) =310636a(27) =483362a(28) =752129a(29) =1170338