A044124 Numbers k such that string 3,4 occurs in the base 6 representation of k but not of k-1.

22, 58, 94, 130, 132, 166, 202, 238, 274, 310, 346, 348, 382, 418, 454, 490, 526, 562, 564, 598, 634, 670, 706, 742, 778, 780, 792, 850, 886, 922, 958, 994, 996, 1030, 1066, 1102, 1138, 1174, 1210, 1212, 1246, 1282, 1318, 1354, 1390, 1426, 1428, 1462, 1498, 1534, 1570

Offset

1,1

Links

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

Mathematica

A044124Q[k_] := StringContainsQ[IntegerString[k, 6], "34"] && StringFreeQ[IntegerString[k - 1, 6], "34"];
Select[Range[5000], A044124Q] (* Paolo Xausa, Sep 10 2025 *)

Crossrefs

Cf. A007092.

Sequence in context: A131878 A019506 A202387 * A044505 A156797 A216299

Adjacent sequences: A044121 A044122 A044123 * A044125 A044126 A044127

Keyword

nonn,base

Author

Clark Kimberling

Extensions

More terms from Paolo Xausa, Sep 10 2025

Status

approved