A023060 Positive numbers k such that k and 3*k are anagrams in base 4 (written in base 4).

1023, 10023, 10113, 10230, 10233, 10323, 100023, 100113, 100230, 100233, 100323, 101130, 101133, 101232, 102300, 102330, 102333, 103230, 103233, 103323, 1000023, 1000113, 1000230, 1000233, 1000323, 1001130, 1001133, 1001232, 1002300, 1002330

Offset: 1

Author

David W. Wilson

Keywords

• nonn
• base

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A007090.

Programs

Mathematica

FromDigits[IntegerDigits[#, 4]] & /@ Select[Range[10000], SameQ @@ Sort /@ IntegerDigits[{#, 3*#}, 4] &] (* Amiram Eldar, Aug 06 2025 *)