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A293920
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Number of linear chord diagrams having n chords and minimal chord length seven.
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2
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1, 159, 7564, 245964, 6996588, 193799140, 5489211751, 162272284974, 5047554996855, 165595774518042, 5728636935767404, 208700950019470460, 7993330299623656154, 321268248361695869991, 13525506763517368392668, 595415097485805608016210, 27361311228606445955339071
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OFFSET
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7,2
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LINKS
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FORMULA
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a(n) ~ (exp(-6) - exp(-7)) * 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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