A324451 Number of labeled cyclic chord diagrams with n chords such that the minimal chord length equals seven.

1, 46, 1973, 68201, 2098472, 64097193, 2008704765, 65104369974, 2195744407327, 77260041066718, 2838770935775962, 108941687605845691, 4365240928102864872, 182511493727454453315, 7955490810231969340127, 361168545333805402618994, 17059236243411156603252558

Offset: 7

Author

Alois P. Heinz, Feb 28 2019

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 7..97

Crossrefs

Column k=7 of A324429.

Cf. A324433, A324434.

Formula

a(n) = A324433(n) - A324434(n).