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Search: id:A006553
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| A006553 |
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Numbers n such that n*3^n - 1 is prime.
(Formerly M1575)
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+0
1
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| 1, 2, 6, 10, 18, 40, 46, 86, 118, 170, 1172, 1698, 1810, 2268, 4338, 18362, 72662, 88392, 94110, 161538, 168660, 292340, 401208
(list; graph; listen)
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OFFSET
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1,2
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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).
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LINKS
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Steven Harvey, Generalized Woodall Search
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CROSSREFS
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Sequence in context: A095357 A095358 A084481 this_sequence A054273 A127567 A005993
Adjacent sequences: A006550 A006551 A006552 this_sequence A006554 A006555 A006556
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KEYWORD
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hard,nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Jud McCranie (j.mccranie(AT)comcast.net)
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 05 2008
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