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A177768 Positions of decreases in sequence A061712 (related to Hamming weights of primes). 2
7, 15, 23, 31, 39, 63, 79, 95, 127, 175, 207, 255, 511, 543, 607, 767, 1023, 1279, 2047 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Is the sequence infinite?

All terms listed are of the form == 7 (mod 8). Is there a reason for this phenomenon?

LINKS

Table of n, a(n) for n=1..19.

FORMULA

{n : A061712(n) < A061712(n-1)}.

CROSSREFS

Cf. A061712

Sequence in context: A004771 A029724 A194400 * A243582 A056828 A113505

Adjacent sequences:  A177765 A177766 A177767 * A177769 A177770 A177771

KEYWORD

nonn,base

AUTHOR

Vladimir Shevelev, May 13 2010

STATUS

approved

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Last modified August 22 22:36 EDT 2017. Contains 290952 sequences.