A116113 Numbers k such that k concatenated with k-7 gives the product of two numbers which differ by 8.

95, 216, 287, 515, 675, 995, 1175, 4320, 9995, 82640, 99995, 960795, 999995, 1322312, 4049591, 9999995, 16955015, 34602080, 99999995, 171010235, 181964891, 183673467, 187160072, 321920055, 326530616, 328818032

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			8533818720//8533818713 = 9237867023 * 9237867031, where // denotes concatenation.
		

Crossrefs

Cf. A115429, A116112, A116114, A116126, A116244.