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A002440
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Squares written in base 7.
(Formerly M3431 N1392)
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0
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1, 4, 12, 22, 34, 51, 100, 121, 144, 202, 232, 264, 331, 400, 441, 514, 562, 642, 1024, 1111, 1200, 1261, 1354, 1452, 1552, 1654, 2061, 2200, 2311, 2424, 2542, 2662, 3114, 3241, 3400, 3531, 3664, 4132, 4302, 4444, 4621, 5100, 5251, 5434, 5622, 6112, 6304
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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REFERENCES
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N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
V. Th\'{e}bault, Les R\'{e}cr\'{e}ations Math\'{e}matiques. Gauthier-Villars, Paris, 1952, p. 93.
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LINKS
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Table of n, a(n) for n=1..47.
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FORMULA
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a(n) = A007093(A000290(n)). - Jason Kimberley, Dec 13 2012
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CROSSREFS
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Sequence in context: A047956 A171762 A210639 * A024987 A008210 A057320
Adjacent sequences: A002437 A002438 A002439 * A002441 A002442 A002443
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KEYWORD
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nonn,base,easy
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AUTHOR
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N. J. A. Sloane.
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EXTENSIONS
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More terms from James A. Sellers, Sep 08 2000
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STATUS
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approved
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