id:A109399 - OEIS Search Results

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tau(tau(tau(n))).

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1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n) = A010553(A000005(n)) = A000005(A000005(A000005(n))).`
	CROSSREFS	`Cf. A000005, A010553.` `Sequence in context: A125891 A111895 A032550 this_sequence A036450 A085576 A108622` `Adjacent sequences: A109396 A109397 A109398 this_sequence A109400 A109401 A109402`
	KEYWORD	`easy,nonn`
	AUTHOR	`Jonathan Vos Post (jvospost2(AT)yahoo.com), Aug 26 2005`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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