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A053932 Numbers k such that k^2 contains only digits {2,7,9}. 1
3, 27, 173, 527, 5223, 85013527, 2824499473, 5271838173, 14907304327, 850281851974525726895170673 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Author?, Source, (txt)
CROSSREFS
Cf. A053933.
Sequence in context: A056370 A056361 A141442 * A027507 A297670 A220820
KEYWORD
nonn,base,more
AUTHOR
Patrick De Geest, Mar 15 2000
EXTENSIONS
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005
a(10) from Zhao Hui Du, Mar 06 2024
STATUS
approved

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)