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Search: id:A058439
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A058439 Numbers n such that n^2 contains only digits {0,4,7}, not ending with zero. +0
2
2, 88, 638, 2010988315424552 (list; graph; listen)
OFFSET

1,1
LINKS

P. De Geest, Index to related sequences

Hisanori Mishima, Sporadic tridigital solutions

CROSSREFS

Cf. A058440.

Sequence in context: A041881 A076542 A066226 this_sequence A058463 A166848 A001904

Adjacent sequences: A058436 A058437 A058438 this_sequence A058440 A058441 A058442

KEYWORD

nonn,base,hard,more

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 2000.

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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