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Search: id:A000743
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| A000743 |
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Number of compositions of n into 5 ordered relatively prime parts.
(Formerly M3852 N1577)
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+0
5
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| 1, 5, 15, 35, 70, 125, 210, 325, 495, 700, 1000, 1330, 1820, 2305, 3060, 3750, 4830, 5775, 7315, 8490, 10625, 12155, 14880, 16835, 20475, 22620, 27405, 30100, 35750, 39100, 46360, 49655, 58905, 62985, 73320, 78340, 91390, 95720, 111930, 117425
(list; graph; listen)
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OFFSET
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3,2
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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).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
H. W. Gould, Binomial coefficients, the bracket function and compositions with relatively prime summands, Fib. Quart. 2 (1964), 241-260.
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LINKS
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N. J. A. Sloane, Transforms
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FORMULA
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Moebius transform of binomial(n-1, 4).
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CROSSREFS
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Sequence in context: A015622 A000750 A008487 this_sequence A138779 A090580 A000332
Adjacent sequences: A000740 A000741 A000742 this_sequence A000744 A000745 A000746
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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