Search: id:A006716
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%I A006716 M3369
%S A006716 1,4,9,49,144,441,1444,11449,44944,991494144,4914991449,149991994944,
%T A006716 9141411499911441,199499144494999441,9914419419914449449,
%U A006716 444411911999914911441,419994999149149944149149944191494441
%N A006716 Squares with digits 1, 4, 9 (probably finite).
%D A006716 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A006716 I. Vardi, Computational Recreations in Mathematica. Addison-Wesley, Redwood 
               City, CA, 1991, p. 234.
%H A006716 P. De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">
               Squares containing at most three distinct digits, Index entries for 
               related sequences</a>
%H A006716 A. Ottens, <a href="http://einstein.et.tudelft.nl/~arlet/puzzles/sol.cgi/
               arithmetic/digits/squares/three.digits">The arithmetic-digits-squares-three.digits 
               problem</a>
%H A006716 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               SquareNumber.html">Link to a section of The World of Mathematics.</
               a>
%Y A006716 Cf. A027675 (square roots), A061269.
%Y A006716 Sequence in context: A061867 A019544 A053059 this_sequence A068809 A110481 
               A030088
%Y A006716 Adjacent sequences: A006713 A006714 A006715 this_sequence A006717 A006718 
               A006719
%K A006716 nonn,base,fini
%O A006716 1,2
%A A006716 N. J. A. Sloane (njas(AT)research.att.com).
%E A006716 a(13) corrected by Neven Juric (neven.juric(AT)apis-it.hr), May 14, 2003

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