A116230 n times n+7 gives the concatenation of two numbers m and m-9.

80, 77394226, 89158932, 36623663376237623663376334, 37633762366336633762366234, 62366237633663366237633760, 63376336623762376336623660, 86194223018927804587702127

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			89158932 * 89158939 = 79493157//79493148, where // denotes
concatenation.
		

Crossrefs

Cf. A116099, A116229, A116231, A116238.