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A053924 Numbers k such that k^2 contains only digits {2,4,9}. 1
2, 3, 7, 173, 212, 307, 1557, 3038, 4788, 6557, 9607, 70173, 222327, 649788, 7015857, 17173882, 22349368, 30402212, 1514009327, 5470304327, 67081614057, 171739460943, 205534649693, 473521111382, 666553067838 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..25.

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

Author?, Source(txt)

CROSSREFS

Cf. A053925.

Sequence in context: A007013 A103405 A087311 * A130060 A224894 A266269

Adjacent sequences:  A053921 A053922 A053923 * A053925 A053926 A053927

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Mar 15 2000

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005

STATUS

approved

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Last modified October 1 15:05 EDT 2020. Contains 337443 sequences. (Running on oeis4.)