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 A136892 Numbers k such that k and k^2 use only the digits 0, 2, 3, 6 and 7. 2
 0, 6, 26, 60, 260, 600, 606, 2600, 6000, 6006, 6060, 26000, 60000, 60006, 60060, 60600, 260000, 270606, 600000, 600006, 600060, 600600, 606000, 2600000, 2603326, 2706060, 6000000, 6000006, 6000060, 6000600, 6000606, 6006000, 6060000, 6060006, 26000000, 26033260, 27060600, 60000000, 60000006, 60000060, 60000600, 60000606, 60006000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Generated with DrScheme. LINKS Jonathan Wellons, Table of n, a(n) for n = 1..558 J. Wellons, Tables of Shared Digits EXAMPLE 600306307363726^2 = 360367662660672272772060603076. MATHEMATICA With[{c={0, 2, 3, 6, 7}}, Select[FromDigits/@Tuples[c, 8], SubsetQ[ c, IntegerDigits[ #^2]]&]] (* Harvey P. Dale, Mar 01 2020 *) CROSSREFS Sequence in context: A166728 A285453 A327713 * A254527 A190095 A135036 Adjacent sequences: A136889 A136890 A136891 * A136893 A136894 A136895 KEYWORD base,nonn AUTHOR Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008 STATUS approved

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Last modified December 4 03:42 EST 2023. Contains 367541 sequences. (Running on oeis4.)