E.g.f.: 4*exp(4*x) / (5 - exp(4*x)).
A201368
E.g.f.: 4*exp(4*x) / (5 - exp(4*x)).
Terms
- a(0) =1a(1) =5a(2) =30a(3) =230a(4) =2280a(5) =28280a(6) =421680a(7) =7336880a(8) =145879680a(9) =3263031680a(10) =81097294080
External references
- oeis: A201368
A201368
E.g.f.: 4*exp(4*x) / (5 - exp(4*x)).