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A293919
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Number of linear chord diagrams having n chords and minimal chord length six.
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2
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1, 79, 2468, 59520, 1357636, 31817497, 788783482, 20863949689, 589285383470, 17736904863864, 567344416149454, 19230190154966409, 688795573160438196, 26004353625119063230, 1032308832642494976585, 42994854622890093855000, 1874878774341679655658359
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OFFSET
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6,2
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LINKS
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FORMULA
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a(n) ~ (exp(-5) - exp(-6)) * 2^(n + 1/2) * n^n / exp(n). - Vaclav Kotesovec, Oct 25 2017
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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