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A246587
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Second trisection of A246584.
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3
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6, 48, 282, 1260, 4896, 16836, 53232, 156384, 433776, 1143696, 2890266, 7032576, 16557084, 37838052, 84206724, 182913216, 388685430, 809399280, 1654446816, 3323927340, 6572070528, 12801615744, 24590359284, 46619988384, 87302773392, 161597518272, 295849759728
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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LINKS
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FORMULA
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a(n) ~ exp(3*Pi*sqrt(n/2)) / (2^(19/4)*sqrt(3)*n^(5/4)). - Vaclav Kotesovec, Aug 16 2019
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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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