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A137117 Numbers n such that n and the square of n use only the digits 2, 5, 7 and 9. 0
5, 27, 77, 527, 7227, 27797977 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Generated with DrScheme

LINKS

J. Wellons, Tables of Shared Digits

EXAMPLE

27797977^2 = 772727525292529

CROSSREFS

Sequence in context: A048712 A121876 A137116 * A064675 A135713 A085740

Adjacent sequences:  A137114 A137115 A137116 * A137118 A137119 A137120

KEYWORD

base,nonn

AUTHOR

Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008

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Last modified February 16 02:51 EST 2012. Contains 205860 sequences.