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 A137033 Numbers k such that k and k^2 use only the digits 1, 3, 5, 6 and 7. 1
 1, 6, 56, 76, 131, 576, 756, 1156, 1331, 3656, 5756, 7166, 11731, 13331, 57716, 57756, 75576, 117331, 133331, 337131, 371156, 577716, 611156, 717756, 731666, 755756, 1333331, 1771331, 3336731, 3367131, 3371376, 6113376, 7167131, 11736156, 13333331, 17657166, 33336731, 33671376, 55777556, 71537131, 71667131, 73316666, 75576156, 75717576 (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..258 J. Wellons, Tables of Shared Digits EXAMPLE 731515657635376^2 = 535115157365716633567766661376. CROSSREFS Sequence in context: A140790 A335217 A335199 * A045526 A164579 A137034 Adjacent sequences: A137030 A137031 A137032 * A137034 A137035 A137036 KEYWORD base,nonn AUTHOR Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008 STATUS approved

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Last modified December 2 19:08 EST 2023. Contains 367525 sequences. (Running on oeis4.)