A044207 Numbers n such that string 2,4 occurs in the base 8 representation of n but not of n-1.

20, 84, 148, 160, 212, 276, 340, 404, 468, 532, 596, 660, 672, 724, 788, 852, 916, 980, 1044, 1108, 1172, 1184, 1236, 1280, 1364, 1428, 1492, 1556, 1620, 1684, 1696, 1748, 1812, 1876, 1940, 2004, 2068, 2132, 2196, 2208, 2260

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 8], {2, 4}]>0, 1, 0], {n, 2500}], {0, 1}][[All, 2]] (* Harvey P. Dale, Mar 30 2022 *)

Crossrefs

Sequence in context: A219473 A256869 A156389 * A044588 A172221 A006566

Adjacent sequences: A044204 A044205 A044206 * A044208 A044209 A044210

Keyword

nonn,base

Author

Clark Kimberling

Status

approved