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A023571 Least odd prime divisor of p(n)-3, or 1 if p(n)-3 is a power of 2. +0
1
1, 1, 1, 1, 1, 5, 7, 1, 5, 13, 7, 17, 19, 5, 11, 5, 7, 29, 1, 17, 5, 19, 5, 43, 47, 7, 5, 13, 53, 5, 31, 1, 67, 17, 73, 37, 7, 5, 41, 5, 11, 89, 47, 5, 97, 7, 13, 5, 7, 113, 5, 59, 7, 31, 127, 5, 7, 67, 137, 139, 5, 5, 19, 7, 5, 157, 41, 167, 43, 173, 5, 89, 7, 5, 47, 5 (list; graph; listen)
OFFSET

1,6

CROSSREFS

Sequence in context: A019697 A021179 A153613 this_sequence A155066 A145737 A108763

Adjacent sequences: A023568 A023569 A023570 this_sequence A023572 A023573 A023574

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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