A136829 Numbers k such that k and k^2 use only the digits 0, 1, 2, 6 and 8.
0, 1, 10, 11, 100, 101, 110, 261, 1000, 1001, 1010, 1011, 1100, 1101, 2610, 10000, 10001, 10010, 10011, 10100, 10110, 10801, 11000, 11001, 11010, 11261, 26100, 26101, 100000, 100001, 100010, 100011, 100100, 100101, 100110, 101000, 101001, 101100, 108010, 110000, 110001, 110010, 110100, 112610, 261000, 261010, 282881, 816261, 1000000, 1000001
Offset: 1
Examples
1062168010261^2 = 1128200882021811801288121.
Links
- Jonathan Wellons, Table of n, a(n) for n = 1..1019
- J. Wellons, Tables of Shared Digits [archived]
Comments