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A104194 a(n) = EulerPhi[n]-CarmichaelLambda[n] (cf. A000010, A002322). +0
1
0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 2, 0, 0, 4, 4, 0, 0, 0, 4, 6, 0, 0, 6, 0, 0, 0, 6, 0, 4, 0, 8, 10, 0, 12, 6, 0, 0, 12, 12, 0, 6, 0, 10, 12, 0, 0, 12, 0, 0, 16, 12, 0, 0, 20, 18, 18, 0, 0, 12, 0, 0, 30, 16, 36, 10, 0, 16, 22, 12, 0, 18, 0, 0, 20, 18, 30, 12, 0, 28, 0, 0, 0, 18, 48, 0, 28, 30, 0, 12 (list; graph; listen)
OFFSET

1,8

COMMENT

A chaotic sequence

MATHEMATICA

a= Table[EulerPhi[n] - CarmichaelLambda[n], {n, 1, 200}]

CROSSREFS

Sequence in context: A036274 A047753 A031123 this_sequence A035153 A069847 A097249

Adjacent sequences: A104191 A104192 A104193 this_sequence A104195 A104196 A104197

KEYWORD

nonn

AUTHOR

Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Mar 12 2005

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.


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