E.g.f.: exp( T(T(T(x))) ), where T(x) = -LambertW(-x) is Euler's tree function (A000169).
A268653
E.g.f.: exp( T(T(T(x))) ), where T(x) = -LambertW(-x) is Euler's tree function (A000169).
Terms
- a(0) =1a(1) =1a(2) =7a(3) =82a(4) =1345a(5) =28396a(6) =734149a(7) =22485898a(8) =796769201a(9) =32084546824
External references
- oeis: A268653