A294002 Number of linear chord diagrams having n chords and no chord length larger than ten.

1, 1, 3, 15, 105, 945, 10395, 135135, 2027025, 34459425, 654729075, 4583103525, 34788783519, 286302699633, 2541730502259, 24202811629589, 245427373661087, 2620070906538825, 28854865779691475, 317259847008270825, 3336850194636528659, 32503486859882091945

Offset

0,3

Links

Alois P. Heinz, Table of n, a(n) for n = 0..1000

Crossrefs

Column k=10 of A293960.

Sequence in context: A293999 A294000 A294001 * A001147 A330797 A360438

Adjacent sequences: A293999 A294000 A294001 * A294003 A294004 A294005

Keyword

nonn,easy

Author

Alois P. Heinz, Oct 21 2017

Status

approved