E.g.f.: -1 + exp(( 1 - sqrt(5 - 4*exp(x)) )/2).

A118795

E.g.f.: -1 + exp(( 1 - sqrt(5 - 4*exp(x)) )/2).

Terms

    a(0) =0a(1) =1a(2) =4a(3) =29a(4) =329a(5) =5172a(6) =104335a(7) =2571473a(8) =74894818a(9) =2516911731a(10) =95862252417

External references