A324450 Number of labeled cyclic chord diagrams with n chords such that the minimal chord length equals six.

1, 28, 832, 21510, 534908, 13859131, 376302024, 10758388849, 324301515064, 10305945419380, 345043568421088, 12157186490730430, 450167342192163864, 17492055607930262356, 712111923015875566112, 30325363998402690968142, 1348761584058475514807527

Offset

6,2

Links

Alois P. Heinz, Table of n, a(n) for n = 6..150

Formula

a(n) = A324432(n) - A324433(n).

Crossrefs

Column k=6 of A324429.

Cf. A324432, A324433.

Sequence in context: A158659 A214133 A119055 * A326279 A278195 A095656

Adjacent sequences: A324447 A324448 A324449 * A324451 A324452 A324453

Keyword

nonn

Author

Alois P. Heinz, Feb 28 2019

Status

approved