G.f. = continued fraction: A(x)=1/(1-x-x^2-x^3/(1-x^4-x^5-x^6/(1-x^7-x^8-x^9/(...)))).

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =13a(6) =24a(7) =45a(8) =84a(9) =157a(10) =293a(11) =548a(12) =1025a(13) =1917a(14) =3585a(15) =6705a(16) =12542a(17) =23460a(18) =43882a(19) =82081a(20) =153535a(21) =287193a(22) =537205a(23) =1004861a(24) =1879631a(25) =3515926a(26) =6576683a(27) =12301953a(28) =23011306a(29) =43043596