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A076565 Greatest prime divisor of 2n+1 (sum of two successive integers). +0
3
3, 5, 7, 3, 11, 13, 5, 17, 19, 7, 23, 5, 3, 29, 31, 11, 7, 37, 13, 41, 43, 5, 47, 7, 17, 53, 11, 19, 59, 61, 7, 13, 67, 23, 71, 73, 5, 11, 79, 3, 83, 17, 29, 89, 13, 31, 19, 97, 11, 101, 103, 7, 107, 109, 37, 113, 23, 13, 17, 11, 41, 5, 127, 43, 131, 19, 5, 137, 139, 47, 13 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A090368 A120374 A088836 this_sequence A100029 A099984 A130141

Adjacent sequences: A076562 A076563 A076564 this_sequence A076566 A076567 A076568

KEYWORD

easy,nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Oct 19 2002

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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