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A053890 Numbers k such that k^2 contains only digits {1,3,4}. 2
1, 2, 12, 21, 38, 1188, 20771, 37962, 3378512, 11594538, 65833989271, 3798830532038, 575684923751188, 21079405433537116521, 177324875114669443080086908188 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
Select[Range[1, 10000], ContainsOnly[IntegerDigits[#^2], {1, 3, 4}] &] (* Julien Kluge, Jul 08 2016 *)
CROSSREFS
Cf. A053891.
Sequence in context: A284595 A053898 A058413 * A053896 A155890 A213969
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 03 2006
Two more terms from Mishima's page added by Max Alekseyev, Jan 28 2012
a(15) from Zhao Hui Du, Mar 06 2024
STATUS
approved

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Last modified July 13 06:34 EDT 2024. Contains 374267 sequences. (Running on oeis4.)