A324452 Number of labeled cyclic chord diagrams with n chords such that the minimal chord length equals eight.

1, 75, 4665, 210738, 8209677, 297511656, 10758827632, 395523803515, 14915877669600, 580537472007709, 23391018103358991, 977123638431619844, 42348895992865182235, 1904609547261379880531, 88871688665105062492072, 4300641510854505723773724

Offset

8,2

Links

Alois P. Heinz, Table of n, a(n) for n = 8..50

Formula

a(n) = A324434(n) - A324435(n).

Crossrefs

Column k=8 of A324429.

Cf. A324434, A324435.

Sequence in context: A166725 A075913 A134228 * A110902 A207546 A207552

Adjacent sequences: A324449 A324450 A324451 * A324453 A324454 A324455

Keyword

nonn

Author

Alois P. Heinz, Feb 28 2019

Status

approved