A044106 Numbers k such that string 0,4 occurs in the base 6 representation of k but not of k-1.

40, 76, 112, 148, 184, 220, 240, 256, 292, 328, 364, 400, 436, 456, 472, 508, 544, 580, 616, 652, 672, 688, 724, 760, 796, 832, 868, 888, 904, 940, 976, 1012, 1048, 1084, 1104, 1120, 1156, 1192, 1228, 1264, 1300, 1320, 1336, 1372, 1408, 1440, 1480, 1516, 1536, 1552

Offset

1,1

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Mathematica

A044106Q[k_] := StringContainsQ[IntegerString[k, 6], "04"] && StringFreeQ[IntegerString[k - 1, 6], "04"];
Select[Range[5000], A044106Q] (* Paolo Xausa, Sep 23 2025 *)

Crossrefs

Cf. A007092.

Sequence in context: A260170 A260544 A260537 * A044487 A253692 A253699

Adjacent sequences: A044103 A044104 A044105 * A044107 A044108 A044109

Keyword

nonn,base

Author

Clark Kimberling

Extensions

More terms from Paolo Xausa, Sep 23 2025

Status

approved