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A137128 Numbers k such that k and k^2 use only the digits 3, 4, 6, 7 and 9. 1
3, 6, 7, 63, 9694, 797963, 967974, 973364, 9736363, 99967343, 796479376, 973639376, 7977339643, 9667799474, 9676449736, 9676773736, 9997339643, 9997396643, 79774334643, 79979334643, 96676443736, 96676763736, 97333344474, 97464694364, 797796639376, 966433977764, 966667677974, 966676674694, 967649977764 (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..91

J. Wellons, Tables of Shared Digits

EXAMPLE

997364767473736^2 = 994736479397939479743449797696.

CROSSREFS

Sequence in context: A233209 A186521 A067697 * A256372 A330890 A337404

Adjacent sequences:  A137125 A137126 A137127 * A137129 A137130 A137131

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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Last modified November 29 21:32 EST 2021. Contains 349416 sequences. (Running on oeis4.)