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A070320 Max( phi(k) : k=1,2,3,...,n ). +0
2
1, 1, 2, 2, 4, 4, 6, 6, 6, 6, 10, 10, 12, 12, 12, 12, 16, 16, 18, 18, 18, 18, 22, 22, 22, 22, 22, 22, 28, 28, 30, 30, 30, 30, 30, 30, 36, 36, 36, 36, 40, 40, 42, 42, 42, 42, 46, 46, 46, 46, 46, 46, 52, 52, 52, 52, 52, 52, 58, 58, 60, 60, 60, 60, 60, 60, 66, 66, 66, 66, 70, 70 (list; graph; listen)
OFFSET

1,3

FORMULA

a(1)=1; for n>=2, a(n)=A007917(n)-1.

CROSSREFS

Sequence in context: A057144 A080606 A083535 this_sequence A124195 A079584 A004079

Adjacent sequences: A070317 A070318 A070319 this_sequence A070321 A070322 A070323

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), May 11 2002

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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