id:A032698 - OEIS Search Results

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Only 2 digits from (1,2,3,4,5,6,7,8,9) can precede a(n) to form a lucky number.

+0
1

17, 45, 55, 57, 63, 69, 75, 81, 87, 99, 101, 105, 109, 117, 129, 131, 133, 135, 147, 153, 161, 167, 169, 171, 177, 181, 187, 189, 197, 201, 203, 207, 209, 213, 215, 217, 221, 227, 243, 245, 259, 261, 269, 271, 273, 279, 281, 289, 291, 293, 303, 309, 311 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`If a(n) = 303 then we find only '1'303 and '9'303 to be lucky numbers.`
	CROSSREFS	`Cf. A000959.` `Sequence in context: A093191 A033703 A140155 this_sequence A120099 A045570 A058205` `Adjacent sequences: A032695 A032696 A032697 this_sequence A032699 A032700 A032701`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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