Coefficients of x^n in the n-th iteration of (x + x^2) for n>=1.
A112317
Coefficients of x^n in the n-th iteration of (x + x^2) for n>=1.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =30a(4) =220a(5) =2170a(6) =27076a(7) =409836a(8) =7303164a(9) =149837028a(10) =3479498880a(11) =90230486346
External references
- oeis: A112317