A136981 - OEIS

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A136981

Numbers k such that k and k^2 use only the digits 1, 2, 3, 6 and 9.

1, 3, 6, 11, 13, 19, 31, 36, 63, 96, 111, 139, 263, 369, 1123, 1619, 2631, 3161, 3361, 3623, 6296, 9963, 11119, 12911, 16313, 16339, 19213, 19219, 31131, 33611, 36361, 36963, 62619, 96123, 99631, 126969, 139261, 162296, 162369, 199231, 262911, 263236, 316119, 333611, 333661, 336339, 362369, 363639, 369219, 369611, 369623, 963969, 969119

(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..465

J. Wellons, Tables of Shared Digits [archived]

EXAMPLE

369612126329239^2 = 136613123929621329612626319121.

CROSSREFS

Sequence in context: A310090 A316096 A310091 * A316317 A074737 A310092

Adjacent sequences: A136978 A136979 A136980 * A136982 A136983 A136984

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved