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A035103 Number of 0's in binary representation of n-th prime. +0
8
1, 0, 1, 0, 1, 1, 3, 2, 1, 1, 0, 3, 3, 2, 1, 2, 1, 1, 4, 3, 4, 2, 3, 3, 4, 3, 2, 2, 2, 3, 0, 5, 5, 4, 4, 3, 3, 4, 3, 3, 3, 3, 1, 5, 4, 3, 3, 1, 3, 3, 3, 1, 3, 1, 7, 5, 5, 4, 5, 5, 4, 5, 4, 3, 4, 3, 4, 5, 3, 3, 5, 3, 2, 3, 2, 1, 5, 4, 5, 4, 4, 4, 2, 4, 2, 2, 5, 4, 3, 2, 3, 1, 2, 2, 2, 1, 1, 7, 6, 5, 6, 5, 5, 5, 4 (list; graph; listen)
OFFSET

1,7

FORMULA

a(n) = A035100(n) - A014499(n). [From M. F. Hasler (mhasler(AT)univ-ag.fr), Nov 21 2009]

MATHEMATICA

Table[ Count[ IntegerDigits[ Prime[ n ], 2 ], 0 ], {n, 120} ]

PROGRAM

(PARI) A035103(n) = #(n=binary(prime(n)))-norml2(n) [From M. F. Hasler (mhasler(AT)univ-ag.fr), Nov 21 2009]

CROSSREFS

Cf. A014499, A035100.

Sequence in context: A096874 A090046 A129267 this_sequence A155033 A107889 A138384

Adjacent sequences: A035100 A035101 A035102 this_sequence A035104 A035105 A035106

KEYWORD

nonn,base,easy,new

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

More terms from Erich Friedman (erich.friedman(AT)stetson.edu)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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