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A137084 Numbers k such that k and k^2 use only the digits 2, 3, 5, 7 and 9. 1
3, 5, 23, 27, 73, 77, 235, 523, 527, 577, 723, 773, 5223, 5723, 5773, 5777, 7227, 27527, 57927, 72335, 75723, 97773, 232227, 232335, 239227, 239573, 522235, 597773, 727527, 757227, 2322235, 2357527, 5232335, 5723227, 5775777, 7597523, 23522235, 23922235, 23923335, 27797977, 57755723, 59377923, 59799277, 72755723, 229255223, 235357977 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Generated with DrScheme.

LINKS

Jonathan Wellons, Table of n, a(n) for n = 1..180

J. Wellons, Tables of Shared Digits

EXAMPLE

279272793757923^2 = 77993293333355395752325273929.

CROSSREFS

Sequence in context: A270163 A271417 A270912 * A271347 A222424 A067256

Adjacent sequences: A137081 A137082 A137083 * A137085 A137086 A137087

KEYWORD

base,nonn

AUTHOR

Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008

STATUS

approved

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Last modified December 6 12:58 EST 2022. Contains 358634 sequences. (Running on oeis4.)