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A116225 n times n+1 gives the concatenation of two numbers m and m-9. 3
12, 878, 969, 4582271, 5417729, 7235911, 7365332534826384966, 8274423443917294057, 3818527786666305707333509337803, 6181472213333694292666490662197, 7454891423029942070969872974167 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
7235911 * 7235912 = 5235841//5235832, where // denotes
concatenation.
CROSSREFS
Sequence in context: A271433 A140412 A276013 * A214313 A306642 A283570
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved

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Last modified March 29 08:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)