id:A130892 - OEIS Search Results

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

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

	OFFSET	`2,3`
	CROSSREFS	`Cf. A131516; A130758; A000027; A001477; A006005.` `Adjacent sequences: A130889 A130890 A130891 this_sequence A130893 A130894 A130895` `Sequence in context: A131516 A088140 A130758 this_sequence A074643 A060794 A074919`
	KEYWORD	`nonn`
	AUTHOR	`Mohammad K. Azarian (azarian(AT)evansville.edu), Aug 21 2007`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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