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URL: https://oeis.org/A053920

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A053920

Numbers k such that k^2 contains only digits {2,3,9}.

1

3, 173, 577, 1823, 4827, 3036823, 6271677, 96032923, 179721989173, 184207283323, 5415158292177, 1814641285211195673, 14940646884386874573

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..13.

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

H. Mishima Squares consisted of 3 different digits [From Max Alekseyev, Mar 12 2009]

CROSSREFS

Sequence in context: A209804 A306401 A053930 * A297948 A298557 A298767

Adjacent sequences: A053917 A053918 A053919 * A053921 A053922 A053923

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest, Mar 15 2000

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005

One more term from Jon E. Schoenfield, Sep 04 2006

Two more terms from Mishima's page added by Max Alekseyev, Mar 12 2009

STATUS

approved