A136981 - OEIS

%I #8 Apr 12 2024 09:51:27

%S 1,3,6,11,13,19,31,36,63,96,111,139,263,369,1123,1619,2631,3161,3361,

%T 3623,6296,9963,11119,12911,16313,16339,19213,19219,31131,33611,36361,

%U 36963,62619,96123,99631,126969,139261,162296,162369,199231,262911,263236,316119,333611,333661,336339,362369,363639,369219,369611,369623,963969,969119

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

%C Generated with DrScheme.

%H Jonathan Wellons, <a href="/A136981/b136981.txt">Table of n, a(n) for n = 1..465</a>

%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]

%e 369612126329239^2 = 136613123929621329612626319121.

%K base,nonn

%O 1,2

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