A116299 n times n+8 gives the concatenation of two numbers m and m+1.

40, 53, 40354307, 59645686, 39704957106129738595969799927610, 44505281604832422780051712184759, 45053875613995255103944518907119, 54946124386004744896055481092874, 55494718395167577219948287815234

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			59645686 * 59645694 = 35576083//35576084, where // denotes
concatenation.
		

Crossrefs

Cf. A116168, A116292, A116298, A116300, A116305.