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 A137114 Numbers k such that k and k^2 use only the digits 2, 5, 6, 8 and 9. 1
 5, 25, 925, 2585, 2925, 22925, 25665, 25865, 28685, 28686, 228685, 256565, 258565, 828665, 925525, 925665, 926565, 962585, 2286685, 2299686, 2925525, 2926925, 9266565, 22866685, 22866925, 22925865, 22955585, 22955665, 25662585, 28686685, 29266925, 29296585, 29825865, 29882585, 29926565, 82882585, 92566565, 92895565, 96259685 (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..230 J. Wellons, Tables of Shared Digits [archived] EXAMPLE 829629856598686^2 = 688285698959956296296856926596. MATHEMATICA Module[{c={2, 5, 6, 8, 9}}, Table[Select[FromDigits/@Tuples[c, n], SubsetQ[ c, IntegerDigits[#^2]]&], {n, 8}]]//Flatten (* Harvey P. Dale, Oct 21 2016 *) CROSSREFS Sequence in context: A169652 A359232 A359235 * A067212 A061583 A278120 Adjacent sequences: A137111 A137112 A137113 * A137115 A137116 A137117 KEYWORD base,nonn AUTHOR Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008 STATUS approved

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Last modified August 9 16:51 EDT 2024. Contains 375044 sequences. (Running on oeis4.)