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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
OFFSET
1,1
COMMENTS
Generated with DrScheme.
LINKS
J. Wellons, Tables of Shared Digits [archived]
EXAMPLE
997364767473736^2 = 994736479397939479743449797696.
CROSSREFS
Sequence in context: A233209 A186521 A067697 * A256372 A330890 A337404
KEYWORD
base,nonn
AUTHOR
Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
STATUS
approved