Number of labeled rooted trees with a degree constraint: (2*n)!/(2^n) * C(2*n+1, n).
A036770
Number of labeled rooted trees with a degree constraint: (2*n)!/(2^n) * C(2*n+1, n).
Terms
- a(0) =1a(1) =3a(2) =60a(3) =3150a(4) =317520a(5) =52390800a(6) =12843230400
External references
- oeis: A036770