A116266 n times n+2 gives the concatenation of two numbers m and m-3.

7, 7311, 8990, 32523, 67476, 76567, 4891729, 5108270, 8528093, 71588335, 98999900, 399659933006, 600340066993, 723627738226, 877712329767, 998999999000, 3485626998113, 3787100274613, 6212899725386, 6514373001886

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			98999900 * 98999902 = 98009803//98009800, where // denotes
concatenation.
		

Crossrefs

Cf. A115431, A116252, A116265, A116267, A116273.