Expansion of e.g.f. 2*x/(1-exp(-2*x)+2*exp(-x)).
A109577
Expansion of e.g.f. 2*x/(1-exp(-2*x)+2*exp(-x)).
Terms
- a(0) =0a(1) =1a(2) =0a(3) =3a(4) =-12a(5) =65a(6) =-450a(7) =3577a(8) =-32424a(9) =331137a(10) =-3757350a(11) =46892681a(12) =-638447436a(13) =9416929249a(14) =-149581289130
External references
- oeis: A109577