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Search: id:A064577
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A064577 First differences of A064574. +0
6
0, 0, 1, 0, 1, 0, 2, 1, 1, 0, 3, 0, 1, 1, 4, 0, 3, 0, 4, 1, 1, 0, 6, 1, 1, 2, 4, 0, 4, 0, 6, 1, 1, 1, 9, 0, 1, 1, 7, 0, 5, 0, 5, 3, 1, 0, 11, 1, 3, 1, 6, 0, 6, 1, 8, 1, 1, 0, 12, 0, 1, 3, 11, 1, 5, 0, 8, 1, 4, 0, 17, 0, 1, 3, 8, 1, 6, 0, 15, 4, 1, 0, 17, 1, 1, 1, 13, 0, 11, 1, 10, 1, 1, 1, 21, 0, 3, 4, 16 (list; graph; listen)
OFFSET

1,7

COMMENT

Apparently a(n)=0 when n+1 is prime. Diverges from A028422(n+1) at n=19.

CROSSREFS

A064572, A064573, A064574, A064575, A064576, A028422.

Adjacent sequences: A064574 A064575 A064576 this_sequence A064578 A064579 A064580

Sequence in context: A073202 A055212 A028422 this_sequence A113949 A143810 A128589

KEYWORD

easy,nonn

AUTHOR

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

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


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