a(n) = n! [x^n] W(-W(x))/(-W(x)), where W(x) is the Lambert W function.

A340473

a(n) = n! [x^n] W(-W(x))/(-W(x)), where W(x) is the Lambert W function.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =7a(4) =13a(5) =321a(6) =31a(7) =42673a(8) =-214983a(9) =12251809a(10) =-156239909a(11) =6366130761a(12) =-135725103227

External references