Expansion of e.g.f. arctanh(x)*exp(x).

Terms

a(0) =0a(1) =1a(2) =2a(3) =5a(4) =12a(5) =49a(6) =190a(7) =1301a(8) =7224a(9) =69441a(10) =495898a(11) =6095429a(12) =53005700a(13) =792143793a(14) =8110146070a(15) =142633278997