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A232222 Connected matchings with n crossings, in a disk. 1
1, 3, 13, 65, 354, 2035, 12151, 74618, 468233, 2989093 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
V. Pilaud, J. Rué, Analytic combinatorics of chord and hyperchord diagrams with k crossings, arXiv preprint arXiv:1307.6440, 2013
CROSSREFS
Sequence in context: A364473 A186577 A141342 * A241598 A155867 A009102
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Nov 22 2013
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)