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Numbers k > 1 such that, in base 9, k and k^2 contain the same digits in the same proportion.
12

%I #15 Aug 25 2023 00:56:28

%S 2890,26010,188722,234090,235954,260416,390688,484094,511234,1621474,

%T 1651654,1698498,1953842,2022214,2106810,2123586,2202230,2283388,

%U 2296028,2343744,2485838,2496508,2559962,2595386,2627210,2841118,3091018,3118760,3309540,3334316,3483208

%N Numbers k > 1 such that, in base 9, k and k^2 contain the same digits in the same proportion.

%H Ray Chandler, <a href="/A061663/b061663.txt">Table of n, a(n) for n = 1..1000</a>

%e 2890 = 3861_9 and 2890^2 = 16638831_9.

%Y Cf. A061656, A061657, A061658, A061659, A061660, A061661, A061662, A114258, A061664.

%K base,easy,nonn

%O 1,1

%A _Erich Friedman_, Jun 16 2001

%E More terms from _Naohiro Nomoto_, Oct 04 2001

%E Offset changed to 1 by _Alois P. Heinz_, May 10 2015

%E Terms a(13)-a(31) and beyond from _Seiichi Manyama_, Aug 20 2023