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A044065
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Numbers n such that string 1,0 occurs in the base 4 representation of n but not of n-1.
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0
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4, 16, 36, 52, 64, 100, 116, 132, 144, 164, 180, 196, 208, 228, 244, 256, 356, 372, 388, 400, 420, 436, 452, 464, 484, 500, 516, 528, 548, 564, 576, 612, 628, 644, 656, 676, 692, 708, 720, 740, 756, 772, 784, 804, 820, 832, 868
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 4], {1, 0}]>0, 1, 0], {n, 900}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jul 26 2017 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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