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A130675 Number of permutations of prime factors of n. +0
1
0, 1, 1, 2, 1, 2, 1, 6, 2, 2, 1, 6, 1, 2, 2, 24, 1, 6, 1, 6, 2, 2, 1, 24, 2, 2, 6, 6, 16, 1, 120, 2, 2, 2, 24, 1, 2, 2, 24, 1, 6, 1, 6, 6, 2, 1, 120, 2, 6, 2, 6, 1, 24, 2, 24, 2, 21, 24, 1, 2, 6, 720, 2, 6, 1, 6, 2, 6, 1, 120, 1, 2, 6, 6, 2, 6, 1, 120, 24, 2, 1, 24, 2, 2, 2, 24, 1, 24, 2, 6, 2, 2, 2 (list; graph; listen)
OFFSET

1,4

CROSSREFS

Sequence in context: A055770 A113766 A112623 this_sequence A163820 A057568 A046749

Adjacent sequences: A130672 A130673 A130674 this_sequence A130676 A130677 A130678

KEYWORD

nonn

AUTHOR

Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Aug 12 2007

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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