Expansion of tan(tan(x))*exp(x).

Terms

a(0) =0a(1) =1a(2) =2a(3) =7a(4) =20a(5) =117a(6) =518a(7) =4555a(8) =27432a(9) =317577a(10) =2405194a(11) =34316335a(12) =312554428a(13) =5287957053a(14) =56240197198