A116282 Numbers k such that k*(k+6) gives the concatenation of two numbers m and m-1.

7744, 8018, 33294315, 66705680, 98000198, 340465755422, 476452552742, 523547447253, 659534244573, 866013200678, 998000001998, 3695104677080131, 3755782995538765, 4198081170077528, 4803478892324963, 5196521107675032

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			98000198 * 98000204 = 96040393//96040392, where // denotes concatenation.
		

Crossrefs

Cf. A115429, A116262, A116281, A116283, A116290.