49520

Appears in sequences

• a(n) is the smallest number k >= 2 for which k and k^2 contain the same digits in the same proportion in base n.at n=15A061664
• Consider the base-9 Kaprekar map n->K(n) defined in A165110. Sequence gives numbers belonging to cycles, including fixed points.at n=15A165115
• Consider the base-9 Kaprekar map n->K(n) defined in A165110. Sequence gives numbers belonging to cycles of length greater than 1.at n=13A165117