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A053950
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Numbers n such that n^2 contains only digits {4,5,7}.
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1
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OFFSET
| 1,1
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LINKS
| Author?, Source(txt)
P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
H. Mishima, Sporadic tridigital solutions
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CROSSREFS
| Cf. A053951.
Sequence in context: A058463 A166848 A001904 * A012728 A012733 A058459
Adjacent sequences: A053947 A053948 A053949 * A053951 A053952 A053953
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KEYWORD
| nonn,base,more
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.
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EXTENSIONS
| More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005
One more term from Mishima's webpage added by Max Alekseyev (maxale(AT)gmail.com), Jan 28 2012
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