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A091937 Greatest number of 1's in binary representations of primes between 2^n and 2^(n+1). 3
2, 3, 3, 5, 5, 7, 7, 8, 9, 10, 11, 13, 13, 13, 15, 17, 17, 19, 19, 20, 21, 21, 23, 24, 25, 25, 27, 28, 29, 31, 31, 32, 33, 34, 35, 35, 37, 37, 39, 40, 41, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 53, 55, 56, 56, 58, 59, 61, 61, 61, 63, 64, 65, 66, 67, 68, 69, 69, 71, 72 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) = A000120(A091938(n)).

LINKS

Table of n, a(n) for n=1..72.

MATHEMATICA

Run the second Mathematica line of A091938, then Count[ IntegerDigits[ #, 2], 1] & /@ Table[ f[n], {n, 75}]

CROSSREFS

Cf. A091935.

Sequence in context: A093841 A281354 A283313 * A239906 A239907 A113637

Adjacent sequences:  A091934 A091935 A091936 * A091938 A091939 A091940

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Feb 14 2004

EXTENSIONS

More terms from Robert G. Wilson v, Feb 20 2004

STATUS

approved

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Last modified July 24 04:08 EDT 2019. Contains 325290 sequences. (Running on oeis4.)