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 A137073 Numbers n such that n and the square of n use only the digits 2, 3, 4, 6 and 9. 1
 2, 3, 6, 63, 264, 632, 964, 2236, 4932, 4942, 4943, 22236, 22292, 26394, 26443, 49332, 49342, 49423, 49693, 49694, 62963, 66292, 66332, 222923, 494236, 494262, 494392, 494462, 496632, 499332, 499342, 499392, 499423, 499432, 626394, 996693, 996962, 2224694, 2496643, 2632343, 2632344, 2639364, 4946662, 4993332, 4993923, 4994236 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Generated with DrScheme LINKS Jonathan Wellons, Table of n, a(n) for n=1..644 J. Wellons, Tables of Shared Digits EXAMPLE 969362934942323^2 = 939664499639994332999336636329 MATHEMATICA With[{c={2, 3, 4, 6, 9}}, Table[Select[FromDigits/@Tuples[c, n], SubsetQ[c, IntegerDigits[ #^2]]&], {n, 7}]]//Flatten (* Harvey P. Dale, May 15 2017 *) CROSSREFS Sequence in context: A018409 A226933 A018415 * A018434 A124649 A018448 Adjacent sequences:  A137070 A137071 A137072 * A137074 A137075 A137076 KEYWORD base,nonn AUTHOR Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008 STATUS approved

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Last modified July 25 02:47 EDT 2017. Contains 289779 sequences.