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Search: id:A005510
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| A005510 |
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a(n)=1+a([ n/2 ])*a( ceiling ( n/2 ) ).
(Formerly M2842)
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+0
1
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| 3, 10, 31, 101, 311, 962, 3132, 10202, 31412, 96722, 299183, 925445, 3012985, 9809425, 31952665, 104080805, 320465225, 986713745, 3038231465, 9355145285, 28937578127
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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All terms are congruent to 3 mod 7.
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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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CROSSREFS
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Sequence in context: A002160 A114487 A017934 this_sequence A005725 A079522 A024426
Adjacent sequences: A005507 A005508 A005509 this_sequence A005511 A005512 A005513
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KEYWORD
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nonn,easy
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AUTHOR
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C. L. Mallows (colinm(AT)research.avayalabs.com)
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