Expansion of e.g.f. exp(4*(exp(x) - 1) - 2*x).

Terms

a(0) =1a(1) =2a(2) =8a(3) =36a(4) =196a(5) =1196a(6) =8116a(7) =60108a(8) =481140a(9) =4126540a(10) =37671540a(11) =364068172a(12) =3707910772a(13) =39645022540a(14) =443540780660