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Search: id:A007359
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| A007359 |
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Number of partitions of n into pairwise relatively prime parts that are >= 2.
(Formerly M0143)
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+0
4
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| 1, 0, 1, 1, 1, 2, 1, 3, 2, 3, 3, 5, 4, 6, 5, 5, 8, 9, 10, 11, 11, 10, 14, 18, 19, 18, 20, 20, 25, 30, 35, 34, 32, 32, 43, 43, 57, 56, 51, 55, 67, 78, 87, 87, 80, 82, 97, 125, 128, 127, 128, 127, 146, 182, 191, 185, 184, 193, 213, 263, 290, 279, 258, 271, 312, 354, 404, 402
(list; graph; listen)
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OFFSET
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0,6
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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).
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FORMULA
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a(n) = A051424(n)-A051424(n-1). - Vladeta Jovovic (vladeta(AT)eunet.rs), Dec 11 2004
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CROSSREFS
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Cf. A007360, A000837, A051424.
Sequence in context: A035386 A029164 A053262 this_sequence A158206 A164988 A115872
Adjacent sequences: A007356 A007357 A007358 this_sequence A007360 A007361 A007362
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com) and Mira Bernstein, following a suggestion from Marc LeBrun (mlb(AT)well.com).
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EXTENSIONS
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More precise definition from Vladeta Jovovic (vladeta(AT)eunet.rs), Dec 11 2004
More terms from Pab Ter (pabrlos2(AT)yahoo.com), Nov 13 2005
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