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A053928 Numbers k such that k^2 contains only digits {2,5,9}. 1
3, 5, 15, 23, 77, 173, 235, 315, 1515, 2435, 7227, 23515, 54335, 97773, 243515, 2435077, 3090673, 72497765, 74533585, 9639636523, 979793819766485, 77170285247817565, 9794365502654705173, 1598601020441309256565 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..24.

P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences

Author?, Source, (txt)

H. Mishima, Sporadic tridigital solutions

CROSSREFS

Cf. A053929.

Sequence in context: A290662 A003549 A018404 * A146779 A146859 A146835

Adjacent sequences:  A053925 A053926 A053927 * A053929 A053930 A053931

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Mar 15 2000

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005

a(21)-a(24) from Mishima's page added by Max Alekseyev, Aug 18 2013

STATUS

approved

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Last modified September 24 04:10 EDT 2020. Contains 337316 sequences. (Running on oeis4.)