A116312 n times n+8 gives the concatenation of two numbers m and m+3.

72, 3255, 6738, 9752, 80647887029795095027968358511096470120, 85938613861405938604061385940594061403, 88568679109003015820047566431888549328

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			9752 * 9760 = 9517//9520, where // denotes concatenation.
		

Crossrefs

Cf. A116181, A116305, A116311, A116313, A116320.