Expansion of 1/(3*x^2 - 3*x + 1)^2.

Terms

a(0) =1a(1) =6a(2) =21a(3) =54a(4) =108a(5) =162a(6) =135a(7) =-162a(8) =-1053a(9) =-2916a(10) =-5832a(11) =-8748a(12) =-8019a(13) =4374a(14) =41553a(15) =118098a(16) =236196a(17) =354294a(18) =334611a(19) =-118098a(20) =-1476225a(21) =-4251528a(22) =-8503056a(23) =-12754584a(24) =-12223143a(25) =3188646a(26) =49424013a(27) =143489070a(28) =286978140a(29) =430467210