A116233 n times n+2 gives the concatenation of two numbers m and m-8.

12, 3656544, 4565635, 5434364, 6343455, 3646962589704198388, 6353037410295801611, 9101508044249652934, 7903999111431765764698711045777, 9722180929613583946516892863959

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			6343455 * 6343457 = 4023943//4023935, where // denotes
concatenation.
		

Crossrefs

Cf. A116102, A116226, A116232, A116234, A116247.