A116299 n times n+8 gives the concatenation of two numbers m and m+1.

40, 53, 40354307, 59645686, 39704957106129738595969799927610, 44505281604832422780051712184759, 45053875613995255103944518907119, 54946124386004744896055481092874, 55494718395167577219948287815234

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Example

59645686 * 59645694 = 35576083//35576084, where // denotes
concatenation.

Crossrefs

Cf. A116168, A116292, A116298, A116300, A116305.

Sequence in context: A039523 A217729 A255392 * A110227 A108607 A356744

Adjacent sequences: A116296 A116297 A116298 * A116300 A116301 A116302

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved