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

Terms

a(0) =5a(1) =21a(2) =91a(3) =399a(4) =1757a(5) =7749a(6) =34195a(7) =150927a(8) =666197a(9) =2940693a(10) =12980779a(11) =57299823a(12) =252933485a(13) =1116502149a(14) =4928478499a(15) =21755355951a(16) =96032786213a(17) =423909225621