A044439 Numbers n such that string 2,0 occurs in the base 3 representation of n but not of n+1.

6, 15, 20, 24, 33, 42, 47, 51, 62, 69, 74, 78, 87, 96, 101, 105, 114, 123, 128, 132, 143, 150, 155, 159, 188, 195, 204, 209, 213, 224, 231, 236, 240, 249, 258, 263, 267, 276, 285, 290, 294, 305, 312, 317, 321, 330, 339, 344, 348

Offset

1,1

Links

Table of n, a(n) for n=1..49.

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 3], {2, 0}]>0, 1, 0], {n, 350}], {1, 0}][[;; , 1]] (* Harvey P. Dale, Aug 31 2023 *)

Crossrefs

Sequence in context: A335268 A294651 A368309 * A348866 A128253 A020886

Adjacent sequences: A044436 A044437 A044438 * A044440 A044441 A044442

Keyword

nonn,base

Author

Clark Kimberling

Status

approved