Expansion of (exp(3*x)-1)*(exp(2*x)-1)*(exp(x)-1).

Terms

a(0) =0a(1) =0a(2) =0a(3) =36a(4) =432a(5) =3660a(6) =27000a(7) =185556a(8) =1223712a(9) =7862940a(10) =49653000a(11) =309776676a(12) =1915868592a(13) =11772890220a(14) =71992229400a(15) =438593697396