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Search: id:A061164
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| A061164 |
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a(n) = (20n)!n!/(10n)!(7n)!(4n)!. |
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+0
3
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| 1, 5542680, 190818980609400, 7691041400616850556280, 330014847932376708502470210680, 14647137653300940580784413641872332680
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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According to page 781 of the cited reference the generating function F(x) for a(n) is algebraic but not obviously so and the minimal polynomial satisfied by F(x) is quite large.
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REFERENCES
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M. Kontsevich and D. Zagier, Periods, in Mathematics Unlimited - 2001 and Beyond, Springer, Berlin, 2001, pp. 771-808.
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CROSSREFS
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Cf. A061162, A061163.
Sequence in context: A125832 A158760 A092019 this_sequence A143686 A069316 A022210
Adjacent sequences: A061161 A061162 A061163 this_sequence A061165 A061166 A061167
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KEYWORD
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easy,nonn
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AUTHOR
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R. P. Stanley (rstan(AT)math.mit.edu), Apr 17 2001
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