id:A116094 - OEIS Search Results

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Numbers n such that n concatenated with n-9 gives the product of two numbers which differ by 1.

+0
4

15, 771, 939, 2099721, 2935179, 5235841, 5424812334857206131, 6846608332924813315, 1458115445754267551129074204621, 3821059872421656136462055529015, 5557540612916539470512122318065 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`5235841//5235832 = 7235911 * 7235912, where // denotes` `concatenation.`
	CROSSREFS	`Cf. A116095, A116101, A116225.` `Sequence in context: A117812 A034941 A055683 this_sequence A020240 A121292 A042747` `Adjacent sequences: A116091 A116092 A116093 this_sequence A116095 A116096 A116097`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

AT&T Labs Research