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URL: https://oeis.org/A324431

⇱ A324431 - OEIS

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A324431
Number of labeled cyclic chord diagrams with n chords such that every chord has length at least five.
4
1, 0, 0, 0, 0, 1, 18, 381, 7601, 160784, 3621067, 87089383, 2235081950, 61129825519, 1778536033055, 54930050817476, 1796853497380257, 62110926582550043, 2263534922105574576, 86779223311878261139, 3492564794206986891273, 147269976213917444452508
OFFSET
0,7
LINKS
CROSSREFS
Column k=5 of A324428.
Sequence in context: A099276 A221348 A285400 * A070943 A252888 A159647
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Feb 27 2019
STATUS
approved