Expansion of g.f. x/(1-7*x+8*x^2).

Terms

a(0) =0a(1) =1a(2) =7a(3) =41a(4) =231a(5) =1289a(6) =7175a(7) =39913a(8) =221991a(9) =1234633a(10) =6866503a(11) =38188457a(12) =212387175a(13) =1181202569a(14) =6569320583a(15) =36535623529a(16) =203194800039