A116334 n times n+9 gives the concatenation of two numbers m and m+6.

45, 47, 3180, 3454, 6538, 6812, 32423077888994073533, 47028976905526474404, 49049512306209075907, 50950487693790924085, 52971023094473525588, 67576922111005926459, 71498432899270376140, 75216895567882908524

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			6812 * 6821 = 4646//4652, where // denotes concatenation.
		

Crossrefs

Cf. A116203, A116328, A116333, A116342.