Expansion of x*(1 + 2*x + 10*x^2)/((1 - x^2)*(1 - 10*x^2)).

Terms

a(0) =0a(1) =1a(2) =2a(3) =21a(4) =22a(5) =221a(6) =222a(7) =2221a(8) =2222a(9) =22221a(10) =22222a(11) =222221a(12) =222222a(13) =2222221a(14) =2222222a(15) =22222221a(16) =22222222a(17) =222222221a(18) =222222222a(19) =2222222221a(20) =2222222222a(21) =22222222221a(22) =22222222222a(23) =222222222221a(24) =222222222222