A061663 Numbers k > 1 such that, in base 9, k and k^2 contain the same digits in the same proportion.
2890, 26010, 188722, 234090, 235954, 260416, 390688, 484094, 511234, 1621474, 1651654, 1698498, 1953842, 2022214, 2106810, 2123586, 2202230, 2283388, 2296028, 2343744, 2485838, 2496508, 2559962, 2595386, 2627210, 2841118, 3091018, 3118760, 3309540, 3334316, 3483208
Offset: 1
Examples
2890 = 3861_9 and 2890^2 = 16638831_9.
Links
- Ray Chandler, Table of n, a(n) for n = 1..1000
Extensions
More terms from Naohiro Nomoto, Oct 04 2001
Offset changed to 1 by Alois P. Heinz, May 10 2015
Terms a(13)-a(31) and beyond from Seiichi Manyama, Aug 20 2023