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A136982 Numbers k such that k and k^2 use only the digits 1, 2, 3, 7 and 8. 1
1, 11, 111, 1311, 13311, 17811, 133311, 288311, 883811, 1333311, 1823111, 3373111, 13333311, 87828311, 88781311, 133333311, 178387811, 878133311, 888137811, 1333333311, 1372178311, 3337231311, 8881287811, 13183783111, 13333333311, 17712178811, 27781781311, 117183137811, 133333333311, 137373112811, 181138378811 (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..74

J. Wellons, Tables of Shared Digits

EXAMPLE

137372787817811^2 = 18871282832837322287328831721.

CROSSREFS

Sequence in context: A338679 A199764 A097177 * A083441 A261269 A031974

Adjacent sequences:  A136979 A136980 A136981 * A136983 A136984 A136985

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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Last modified May 16 06:43 EDT 2022. Contains 353693 sequences. (Running on oeis4.)