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A058454 Squares composed of digits {0,7,9}, not ending with zero. 1
9, 77777799799099990007000790009009 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..2.

P. De Geest, Index to related sequences

Hisanori Mishima, Sporadic tridigital solutions

CROSSREFS

Cf. A058453.

Sequence in context: A058434 A067487 A058448 * A058472 A058474 A285476

Adjacent sequences:  A058451 A058452 A058453 * A058455 A058456 A058457

KEYWORD

nonn,base,hard,more,bref

AUTHOR

Patrick De Geest, Nov 15 2000

STATUS

approved

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Last modified September 22 22:38 EDT 2021. Contains 347609 sequences. (Running on oeis4.)