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A177768
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Positions of decreases in sequence A061712 (related to Hamming weights of primes).
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2
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7, 15, 23, 31, 39, 63, 79, 95, 127, 175, 207, 255, 511, 543, 607, 767, 1023, 1279, 2047, 4095, 4423, 5135
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OFFSET
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1,1
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COMMENTS
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Is the sequence infinite?
All terms listed are of the form == 7 (mod 8). Is there a reason for this phenomenon?
Conjecture: The numbers 2^k-1 for k > 2 are terms. - Chai Wah Wu, Sep 02 2021
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LINKS
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FORMULA
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CROSSREFS
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KEYWORD
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nonn,more,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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