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A159918 Number of ones in binary representation of n^2. +0
6
0, 1, 1, 2, 1, 3, 2, 3, 1, 3, 3, 5, 2, 4, 3, 4, 1, 3, 3, 5, 3, 6, 5, 3, 2, 5, 4, 6, 3, 5, 4, 5, 1, 3, 3, 5, 3, 6, 5, 7, 3, 5, 6, 7, 5, 8, 3, 4, 2, 5, 5, 5, 4, 8, 6, 7, 3, 6, 5, 7, 4, 6, 5, 6, 1, 3, 3, 5, 3, 6, 5, 7, 3, 6, 6, 9, 5, 7, 7, 5, 3, 6, 5, 8, 6, 7, 7, 7, 5, 9, 8, 5, 3, 6, 4, 5, 2, 5, 5, 6, 5, 9, 5, 7, 4 (list; graph; listen)
OFFSET

0,4

COMMENT

a(n) = A000120(A000290(n));

a(A077436(n)) = A000120(A077436(n)).

CROSSREFS

A007088.

Sequence in context: A107337 A066376 A151682 this_sequence A108663 A057940 A097285

Adjacent sequences: A159915 A159916 A159917 this_sequence A159919 A159920 A159921

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 25 2009

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.


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