id:A106663 - OEIS Search Results

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Smallest semiprime ending in exactly n 9's.

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9, 299, 5999, 19999, 899999, 5999999, 79999999, 299999999, 1999999999, 49999999999, 499999999999, 1999999999999, 29999999999999, 199999999999999, 1999999999999999, 29999999999999999, 599999999999999999 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`When (if ever) does this differ from A104775? - Andrew Plewe, Apr 11 2007`
	EXAMPLE	`a(3)=5999 is a term because 5999 is the smallest semiprime ending in exactly three 9's.`
	CROSSREFS	`Adjacent sequences: A106660 A106661 A106662 this_sequence A106664 A106665 A106666` `Sequence in context: A012838 A061685 A104775 this_sequence A135609 A128788 A124070`
	KEYWORD	`base,nonn`
	AUTHOR	`Shyam Sunder Gupta (guptass(AT)rediffmail.com), May 12 2005`

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Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.

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