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A044442 Numbers n such that string 0,0 occurs in the base 4 representation of n but not of n+1. 0
16, 32, 48, 67, 80, 96, 112, 131, 144, 160, 176, 195, 208, 224, 240, 272, 288, 304, 323, 336, 352, 368, 387, 400, 416, 432, 451, 464, 480, 496, 528, 544, 560, 579, 592, 608, 624, 643, 656, 672, 688, 707, 720, 736, 752, 784, 800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..47.

MATHEMATICA

Select[Range[800], MemberQ[Partition[IntegerDigits[#, 4], 2, 1], {0, 0}] && !MemberQ[Partition[IntegerDigits[#+1, 4], 2, 1], {0, 0}]&] (* Harvey P. Dale, Feb 07 2012 *)

CROSSREFS

Sequence in context: A033013 A043334 A023707 * A082294 A048946 A260050

Adjacent sequences:  A044439 A044440 A044441 * A044443 A044444 A044445

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified January 21 04:53 EST 2020. Contains 331104 sequences. (Running on oeis4.)