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A137061
Numbers k such that k and k^2 use only the digits 1, 5, 6, 7 and 9.
1
1, 76, 719, 9569, 9576, 9796, 719666, 756169, 759576, 956619, 957166, 957576, 995576, 7177166, 7179966, 7717966, 75577716, 97956969, 99795669, 99957576, 975559796, 977576169, 995799576, 997995576, 7177576169, 7517976169, 7691917576, 7719565766, 9579956669, 9957999576, 9999759796, 71777197716, 76155511669, 76155759576
OFFSET
1,2
COMMENTS
Generated with DrScheme.
LINKS
J. Wellons, Tables of Shared Digits [archived]
EXAMPLE
995976796797976^2 = 991969779759956776166557696576.
CROSSREFS
Sequence in context: A253411 A185481 A007250 * A230944 A136963 A136964
KEYWORD
base,nonn
AUTHOR
Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
STATUS
approved