A116140 Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 9.

5, 7403, 8885, 12563, 41675, 54239, 2353623, 2650793, 7717533, 527390351115, 567933643889, 627121279653, 671264212463, 1335723019653517755, 2049430589972661489, 2995303155542192885, 4026214090447622723

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			7717533//7717530 = 8784945 * 8784954, where // denotes concatenation.
		

Crossrefs

Cf. A116133, A116139, A116147, A116271.