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 A002440 Squares written in base 7. (Formerly M3431 N1392) 2
 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)
 OFFSET 1,2 COMMENTS Squares in base 10: 1, 4, 100, 121, 144, 400, 441, 1024, 10000, 10201, 10404, 12100, 12321, 12544, 14400, 14641. - Zak Seidov, Apr 18 2014 REFERENCES 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. Thébault, Les Récréations Mathématiques. Gauthier-Villars, Paris, 1952, p. 93. LINKS Zak Seidov, Table of n, a(n) for n = 1..1000 FORMULA a(n) = A007093(A000290(n)). - Jason Kimberley, Dec 13 2012 MATHEMATICA Table[FromDigits[IntegerDigits[n^2, 7]], {n, 100}] (* Zak Seidov, Apr 18 2014 *) CROSSREFS Sequence in context: A210639 A301260 A301185 * A301220 A301067 A301181 Adjacent sequences:  A002437 A002438 A002439 * A002441 A002442 A002443 KEYWORD nonn,base,easy AUTHOR EXTENSIONS More terms from James A. Sellers, Sep 08 2000 STATUS approved

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Last modified August 11 13:02 EDT 2020. Contains 336428 sequences. (Running on oeis4.)