id:A130758 - OEIS Search Results

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a(n)=n if n is not an odd prime number. Otherwise, a(n)=k, where k is the smallest integer such that n<10^k.

+0
3

0, 1, 2, 1, 4, 1, 6, 1, 8, 9, 10, 2, 12, 2, 14, 15, 16, 2, 18, 2, 20, 21, 22, 2, 24, 25, 26, 27, 28, 2, 30, 2, 32, 33, 34, 35, 36, 2, 38, 39, 40, 2, 42, 2, 44, 45, 46, 2, 48, 49, 50, 51, 52, 2, 54, 55, 56, 57, 58, 2, 60, 2, 62, 63, 64, 65, 66, 2, 68 (list; graph; listen)

	OFFSET	`1,3`
	CROSSREFS	`Cf. A000027; A001477; A006005; A131516.` `Sequence in context: A137374 A131516 A088140 this_sequence A130892 A147389 A147008` `Adjacent sequences: A130755 A130756 A130757 this_sequence A130759 A130760 A130761`
	KEYWORD	`nonn,new`
	AUTHOR	`Mohammad K. Azarian (azarian(AT)evansville.edu), Aug 17 2007`
	EXTENSIONS	`Corrected the first offset. - Mohammad K Azarian (azarian(AT)evansville.edu), Nov 19 2008`

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

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