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A044223 Numbers n such that string 4,4 occurs in the base 8 representation of n but not of n-1. 0
36, 100, 164, 228, 288, 356, 420, 484, 548, 612, 676, 740, 800, 868, 932, 996, 1060, 1124, 1188, 1252, 1312, 1380, 1444, 1508, 1572, 1636, 1700, 1764, 1824, 1892, 1956, 2020, 2084, 2148, 2212, 2276, 2304, 2404, 2468, 2532 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..40.

MATHEMATICA

Select[Range[3000], MemberQ[Partition[IntegerDigits[#, 8], 2, 1], {4, 4}] && !MemberQ[Partition[IntegerDigits[#-1, 8], 2, 1], {4, 4}]&] (* Harvey P. Dale, Oct 12 2012 *)

CROSSREFS

Sequence in context: A069057 A062703 A043438 * A044604 A303606 A303661

Adjacent sequences:  A044220 A044221 A044222 * A044224 A044225 A044226

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 22 17:16 EDT 2020. Contains 337291 sequences. (Running on oeis4.)