A116355 n times n+9 gives the concatenation of two numbers m and m+9.

44, 48, 32182682, 32523192, 67476800, 67817310, 35810391829060641485878662, 41417330943216586236893607, 58582669056783413763106385, 64189608170939358514121330, 87098712900990098712901285

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			67817310 * 67817319 = 45991881//45991890, where // denotes concatenation.
		

Crossrefs

Cf. A116224, A116347, A116354.