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A137015 Numbers k such that k and k^2 use only the digits 1, 2, 6, 7 and 9. 1
1, 11, 26, 27, 96, 127, 276, 277, 1296, 1619, 2777, 9627, 12719, 16161, 16176, 16619, 27796, 96296, 126969, 127161, 129119, 161761, 161777, 266777, 267619, 269777, 1269761, 1272777, 1617619, 1617627, 2629119, 2667619, 2696627, 7912719, 7917777, 11266176, 12719777, 26769627, 27621911, 79226969, 166621176, 166726161, 167116119 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Generated with DrScheme.

LINKS

Jonathan Wellons, Table of n, a(n) for n = 1..198

J. Wellons, Tables of Shared Digits

EXAMPLE

161761916926161^2 = 26166917767626212626726197921.

CROSSREFS

Sequence in context: A191720 A066956 A250611 * A260903 A316315 A251268

Adjacent sequences:  A137012 A137013 A137014 * A137016 A137017 A137018

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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Last modified July 29 17:41 EDT 2021. Contains 346346 sequences. (Running on oeis4.)