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A279208 Number of analytic chord diagrams with n chords, up to symmetry. 3
1, 2, 5, 17, 76, 499, 4132 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

√Čtienne Ghys, A Singular Mathematical Promenade, arXiv:1612.06373 [math.AG], 2016. See p. 252.

CROSSREFS

Cf. A007769, A054499, A279207.

Sequence in context: A259870 A118100 A129591 * A099825 A014288 A199164

Adjacent sequences:  A279205 A279206 A279207 * A279209 A279210 A279211

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Dec 23 2016

STATUS

approved

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Last modified July 22 16:43 EDT 2019. Contains 325225 sequences. (Running on oeis4.)