A324452 - OEIS

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A324452

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

2

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

(list; graph; refs; listen; history; text; internal format)

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