A116264 n times n+9 gives the concatenation of two numbers m and m-4.

76, 4327, 5665, 9364, 41505566065992219341, 44035313091289689594, 46429818586950933763, 48959565612248404016, 51040434387751595976, 53570181413049066229, 55964686908710310398, 58494433934007780651

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			9364 * 9373 = 8776//8772, where // denotes concatenation.
		

Crossrefs

Cf. A116133, A116258, A116263, A116271.