A136875 - OEIS

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A136875

Numbers k such that k and k^2 use only the digits 0, 1, 6 and 7.

0, 1, 10, 100, 1000, 10000, 100000, 1000000, 1077776, 10000000, 10777760, 100000000, 107777600, 1000000000, 1077776000, 10000000000, 10777760000, 100000000000, 107777600000, 1000000000000, 1077776000000, 10000000000000, 10777760000000, 100000000000000, 107777600000000

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

Generated with DrScheme.

LINKS

Table of n, a(n) for n=1..25.

J. Wellons, Tables of Shared Digits [archived]

EXAMPLE

107777600000000^2 = 11616011061760000000000000000.

CROSSREFS

Sequence in context: A136842 A136872 A119084 * A135654 A219112 A232661

Adjacent sequences: A136872 A136873 A136874 * A136876 A136877 A136878

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved