A136811 Numbers k such that k and k^2 use only the digits 0, 1, 2, 3 and 5.

0, 1, 5, 10, 11, 15, 35, 50, 55, 100, 101, 105, 110, 111, 115, 150, 235, 335, 350, 351, 500, 501, 505, 550, 1000, 1001, 1005, 1010, 1011, 1015, 1050, 1055, 1100, 1101, 1105, 1110, 1150, 1235, 1500, 1501, 2305, 2350, 3211, 3335, 3350, 3500, 3510, 3515, 5000, 5001, 5005, 5010, 5011, 5015, 5035, 5050, 5055, 5500, 5505, 10000, 10001, 10005, 10010, 10011, 10015

Offset: 1

Author

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

Keywords

• base
• nonn

Comments

Generated with DrScheme.

Examples

			50530501^2 = 2553331531311001.
		

Links

• Jonathan Wellons, Table of n, a(n) for n = 1..1227
• J. Wellons, Tables of Shared Digits [archived]

Programs

Mathematica

With[{c={0,1,2,3,5}},Select[FromDigits/@Tuples[c,5],SubsetQ[c,IntegerDigits[#^2]]&]] (* Harvey P. Dale, Jun 25 2023 *)