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

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =2a(7) =2a(8) =3a(9) =3a(10) =4a(11) =5a(12) =4a(13) =6a(14) =6a(15) =7a(16) =10a(17) =9a(18) =12a(19) =14a(20) =14a(21) =20a(22) =20a(23) =23a(24) =30a(25) =29a(26) =39a(27) =44a(28) =46a(29) =62