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A080771 Exponent of n-th prime power that is not prime. +0
1
0, 2, 3, 2, 4, 2, 3, 5, 2, 6, 4, 2, 3, 7, 2, 5, 8, 2, 3, 2, 9, 2, 4, 6, 2, 2, 10, 3, 2, 2, 2, 11, 7, 3, 2, 4, 2, 5, 2, 2, 12, 2, 3, 2, 2, 2, 8, 3, 2, 2, 13, 2, 2, 2, 2, 2, 3, 2, 4, 6, 2, 14, 5, 2, 2, 2, 9, 2, 2, 3, 2, 2, 2, 4, 3, 2, 2, 2, 15, 2, 2 (list; graph; listen)
OFFSET

1,2

COMMENT

a(n) = A051903(A025475(n)) = A001222(A025475(n)).

CROSSREFS

Adjacent sequences: A080768 A080769 A080770 this_sequence A080772 A080773 A080774

Sequence in context: A089080 A123725 A085058 this_sequence A025477 A080189 A076399

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 10 2003

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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