A116225 n times n+1 gives the concatenation of two numbers m and m-9.

12, 878, 969, 4582271, 5417729, 7235911, 7365332534826384966, 8274423443917294057, 3818527786666305707333509337803, 6181472213333694292666490662197, 7454891423029942070969872974167

Offset

1,1

Links

Table of n, a(n) for n=1..11.

Example

7235911 * 7235912 = 5235841//5235832, where // denotes
concatenation.

Crossrefs

Cf. A116094, A116226, A116232.

Sequence in context: A271433 A140412 A276013 * A214313 A306642 A283570

Adjacent sequences: A116222 A116223 A116224 * A116226 A116227 A116228

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved