Expansion of g.f. (1+2*x+5*x^2)/(1-10*x^3).

Terms

a(0) =1a(1) =2a(2) =5a(3) =10a(4) =20a(5) =50a(6) =100a(7) =200a(8) =500a(9) =1000a(10) =2000a(11) =5000a(12) =10000a(13) =20000a(14) =50000a(15) =100000a(16) =200000a(17) =500000a(18) =1000000a(19) =2000000a(20) =5000000a(21) =10000000a(22) =20000000a(23) =50000000a(24) =100000000a(25) =200000000a(26) =500000000a(27) =1000000000a(28) =2000000000a(29) =5000000000