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A073572 Largest k such that the arithmetic mean of phi(n),phi(n+1),....,phi(n+x) is an integer for any x 0<=x<=k. +0
1
1, 0, 1, 1, 3, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1, 1, 4, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 2, 2, 1, 1, 3, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1 (list; graph; listen)
OFFSET

1,5

COMMENT

largest k such that sum(i=0,x,phi(n+i))/(x+1) is an integer for 0<=x<=k.

CROSSREFS

Sequence in context: A129172 A090189 A016557 this_sequence A073356 A093032 A072115

Adjacent sequences: A073569 A073570 A073571 this_sequence A073573 A073574 A073575

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Sep 01 2002

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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