A324433 Number of labeled cyclic chord diagrams with n chords such that every chord has length at least seven.

1, 0, 0, 0, 0, 0, 0, 1, 47, 2049, 72989, 2320389, 72984903, 2340136832, 77373758909, 2655913191455, 94925974424159, 3537409377070327, 137498256564370813, 5573810976335976071, 235519207528086247775, 10365638931006805924491, 474762601555480759969273

Offset

0,9

Links

Alois P. Heinz, Table of n, a(n) for n = 0..150

Crossrefs

Column k=7 of A324428.

Sequence in context: A278268 A014941 A280707 * A289984 A189173 A162896

Adjacent sequences: A324430 A324431 A324432 * A324434 A324435 A324436

Keyword

nonn

Author

Alois P. Heinz, Feb 27 2019

Status

approved