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 A137102 Numbers k such that k and k^2 use only the digits 2, 4, 6, 7 and 9. 1
 2, 7, 26, 27, 264, 277, 474, 792, 964, 4762, 6926, 22277, 26962, 27924, 49262, 49426, 49474, 49777, 69262, 264474, 269777, 474262, 476962, 494262, 494462, 494464, 497262, 497662, 499474, 692262, 692277, 962924, 972764, 2779262, 4767277, 4769462, 4772277, 4944464, 4946662, 4994777, 4996926, 4996962, 4997262, 4997764, 9729464, 9964674 (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..424 J. Wellons, Tables of Shared Digits [archived] EXAMPLE 974667496967262^2 = 949976729644427679967499776644. CROSSREFS Sequence in context: A323658 A018980 A012990 * A294681 A229241 A335179 Adjacent sequences: A137099 A137100 A137101 * A137103 A137104 A137105 KEYWORD base,nonn AUTHOR Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008 STATUS approved

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Last modified September 10 04:25 EDT 2024. Contains 375773 sequences. (Running on oeis4.)