Expansion of 1/((1+3*x)*(1-4*x)).

Terms

a(0) =1a(1) =1a(2) =13a(3) =25a(4) =181a(5) =481a(6) =2653a(7) =8425a(8) =40261a(9) =141361a(10) =624493a(11) =2320825a(12) =9814741a(13) =37664641a(14) =155441533a(15) =607417225a(16) =2472715621a(17) =9761722321a(18) =39434309773a(19) =156574977625a(20) =629786694901