Expansion of 1/(1-5*x)^5.

Terms

a(0) =1a(1) =25a(2) =375a(3) =4375a(4) =43750a(5) =393750a(6) =3281250a(7) =25781250a(8) =193359375a(9) =1396484375a(10) =9775390625a(11) =66650390625a(12) =444335937500