id:A064922 - OEIS Search Results

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Number of iterations in A064920 to reach a prime.

+0
4

0, 0, 1, 0, 2, 0, 1, 1, 3, 0, 3, 0, 2, 1, 2, 0, 2, 0, 2, 2, 4, 0, 4, 2, 3, 1, 4, 0, 4, 0, 1, 1, 3, 1, 3, 0, 3, 2, 4, 0, 4, 0, 3, 1, 5, 0, 3, 1, 3, 1, 3, 0, 3, 2, 3, 3, 5, 0, 3, 0, 2, 2, 2, 1, 3, 0, 3, 3, 3, 0, 4, 0, 4, 1, 5, 1, 3, 0, 3, 1, 5, 0, 3, 3, 4, 1, 3, 0, 5, 1, 4, 2, 4, 1, 4, 0, 3, 1, 5, 0, 5, 0, 3, 3, 4 (list; graph; listen)

	OFFSET	`2,5`
	COMMENT	`a(p) = 0 for all primes p.`
	EXAMPLE	`a(18) = 2 as A064920(A064920(18)) = A064920(8) = 5 = A064921(18).`
	CROSSREFS	`Cf. A064920, A064921, A064918.` `Sequence in context: A083537 A135830 A029353 this_sequence A079685 A079603 A055186` `Adjacent sequences: A064919 A064920 A064921 this_sequence A064923 A064924 A064925`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Oct 14 2001`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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