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A053972
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Numbers k such that k^2 contains only digits {6,7,9}.
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1
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3, 26, 264, 313, 3114, 3114113, 278922387, 881361264, 2603208937, 3125343176, 312518799063, 2770739969214, 8366461419063, 260723947264113, 9831977256725526
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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CROSSREFS
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KEYWORD
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nonn,base,more
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AUTHOR
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EXTENSIONS
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More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005
a(14)-a(15) from Mishima's website, added by Max Alekseyev, Nov 30 2017
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STATUS
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approved
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