A116139 Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 8.

43, 20440836, 30017751, 61336887, 52400871197755334426147587, 53651708763838760619655612, 56652002793835820319625612, 57952296063256269823192087, 17684775866714240650923831481623

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			61336887//61336884 = 78317866 * 78317874, where // denotes concatenation.
		

Crossrefs

Cf. A116126, A116205, A116140, A116146, A116270.