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A293921
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Number of linear chord diagrams having n chords and minimal chord length eight.
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2
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1, 319, 23012, 1007508, 35994000, 1189202172, 38767936708, 1287523504769, 44237669097482, 1583944615087121, 59277212496035478, 2320361242104891484, 94969568142679887216, 4060520653281063962444, 181153019365969689229302, 8422282201884215125698329
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OFFSET
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8,2
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LINKS
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FORMULA
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a(n) ~ (exp(-7) - exp(-8)) * 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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