A116338 n times n+5 gives the concatenation of two numbers m and m+7.

700, 777, 791, 868, 42338, 57658, 96884, 44121667, 55878329, 85298138, 36680703009575609347721358494, 63319296990424390652278641502, 69346342454876071597336150482, 81501115172242572470460459684

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

			85298138 * 85298143 = 72757727//72757734, where // denotes
concatenation.
		

Crossrefs

Cf. A116207, A116331, A116337, A116339, A116351.