id:A094051 - OEIS Search Results

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Phi(phi(p))/2 where p = prime(n).

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1, 1, 2, 2, 4, 3, 5, 6, 4, 6, 8, 6, 11, 12, 14, 8, 10, 12, 12, 12, 20, 20, 16, 20, 16, 26, 18, 24, 18, 24, 32, 22, 36, 20, 24, 27, 41, 42, 44, 24, 36, 32, 42, 30, 24, 36, 56, 36, 56, 48, 32, 50, 64, 65, 66, 36, 44, 48, 46, 72, 48, 60, 48, 78, 40, 48, 86, 56, 80, 89, 60, 60, 54, 95, 96, 60 (list; graph; listen)

	OFFSET	`3,3`
	CROSSREFS	`Cf. A008330.` `Sequence in context: A007728 A077026 A060026 this_sequence A058723 A076435 A059975` `Adjacent sequences: A094048 A094049 A094050 this_sequence A094052 A094053 A094054`
	KEYWORD	`nonn`
	AUTHOR	`Matthijs Coster (matthijs(AT)coster.demon.nl), Apr 29 2004`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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