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Search: id:A006656
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| A006656 |
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Denominators of expansion of sinh x / sin x.
(Formerly M2294)
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+0
3
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| 1, 3, 3, 21, 9, 11, 21, 9, 1, 133, 693, 69, 7, 189, 3, 7161, 231, 7, 399, 63, 77, 3311, 4347, 987, 49, 33, 33, 627, 57, 59, 7161, 2079, 11, 10787, 207, 2343, 1463, 4389, 231, 1659
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
J. M. Gandhi, The coefficients of cosh x / cos x and a note on Carlitz's coefficients of sinh x / sin x, Math. Mag., 31 (1958), 185-191.
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CROSSREFS
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Cf. A000965.
Sequence in context: A090694 A078431 A112534 this_sequence A159910 A130723 A036114
Adjacent sequences: A006653 A006654 A006655 this_sequence A006657 A006658 A006659
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KEYWORD
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nonn,easy,frac
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Simon Plouffe (simon.plouffe(AT)gmail.com)
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