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A058420 Squares composed of digits {0,1,7}, not ending with zero. 2
1, 770007001, 71017701771000177071770101111001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..3.

P. De Geest, Index to related sequences

Hisanori Mishima, Sporadic tridigital solutions

CROSSREFS

Cf. A058419.

Sequence in context: A306569 A118876 A157788 * A297867 A344729 A344730

Adjacent sequences:  A058417 A058418 A058419 * A058421 A058422 A058423

KEYWORD

nonn,base,hard,more,bref

AUTHOR

Patrick De Geest, Nov 15 2000

STATUS

approved

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Last modified August 4 16:59 EDT 2021. Contains 346454 sequences. (Running on oeis4.)