A324431 Number of labeled cyclic chord diagrams with n chords such that every chord has length at least five.

1, 0, 0, 0, 0, 1, 18, 381, 7601, 160784, 3621067, 87089383, 2235081950, 61129825519, 1778536033055, 54930050817476, 1796853497380257, 62110926582550043, 2263534922105574576, 86779223311878261139, 3492564794206986891273, 147269976213917444452508

Offset: 0

Author

Alois P. Heinz, Feb 27 2019

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..404

Crossrefs

Column k=5 of A324428.