Expansion of e.g.f.: (log(2-exp(x)))^2.

Terms

a(0) =0a(1) =0a(2) =2a(3) =12a(4) =72a(5) =500a(6) =4080a(7) =38668a(8) =419160a(9) =5124708a(10) =69831360a(11) =1049972924a(12) =17273719848a(13) =308714206996