A116094 Numbers k such that k concatenated with k-9 gives the product of two numbers which differ by 1.

15, 771, 939, 2099721, 2935179, 5235841, 5424812334857206131, 6846608332924813315, 1458115445754267551129074204621, 3821059872421656136462055529015, 5557540612916539470512122318065

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			5235841//5235832 = 7235911 * 7235912, where // denotes
concatenation.
		

Crossrefs

Cf. A116095, A116101, A116225.