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Search: id:A064575
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A064575 First differences of A064572. +0
6
1, 1, 3, 1, 4, 1, 6, 3, 6, 1, 11, 1, 8, 4, 14, 1, 16, 1, 19, 5, 16, 1, 29, 3, 22, 7, 31, 1, 37, 1, 42, 7, 38, 4, 62, 1, 48, 9, 69, 1, 73, 1, 80, 14, 76, 1, 114, 3, 100, 11, 121, 1, 132, 5, 150, 14, 142, 1, 193, 1, 168, 20, 213, 5, 223, 1, 247, 17, 247, 1, 319, 1, 286, 25, 339, 4, 355 (list; graph; listen)
OFFSET

1,3

COMMENT

Apparently a(n)=1 when n+1 is prime.

CROSSREFS

A064572, A064573, A064574, A064576, A064577, A028422.

Sequence in context: A014462 A016474 A069264 this_sequence A094119 A006022 A078896

Adjacent sequences: A064572 A064573 A064574 this_sequence A064576 A064577 A064578

KEYWORD

easy,nonn

AUTHOR

Marc LeBrun (mlb(AT)well.com), Sep 20 2001

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


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