A116319 n times n+7 gives the concatenation of two numbers m and m+4.

77, 4328, 5666, 9365, 41505566065992219342, 44035313091289689595, 46429818586950933764, 48959565612248404017, 51040434387751595977, 53570181413049066230, 55964686908710310399, 58494433934007780652

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			9365 * 9372 = 8776//8780, where // denotes concatenation.
		

Crossrefs

Cf. A116133, A116311, A116318, A116320, A116326.