A023068 Positive numbers k such that k and 2*k are anagrams in base 7 (written in base 7).

1254, 2541, 10254, 12540, 12564, 12654, 25401, 25410, 25641, 26541, 100254, 102540, 102564, 102654, 122454, 122544, 124542, 125400, 125442, 125640, 125664, 126540, 126564, 126654, 135063, 135306, 136053, 136305, 150363, 153036, 160353, 163035

Offset

1,1

Links

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

Mathematica

FromDigits[IntegerDigits[#, 7]] & /@ Select[Range[40000], SameQ @@ Sort /@ IntegerDigits[{#, 2*#}, 7] &] (* Amiram Eldar, Aug 07 2025 *)

Crossrefs

Cf. A007093.

Sequence in context: A252149 A252157 A252150 * A062693 A067203 A230544

Adjacent sequences: A023065 A023066 A023067 * A023069 A023070 A023071

Keyword

nonn,base

Author

David W. Wilson

Status

approved