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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; internal format)
OFFSET

1,1

EXAMPLE

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

concatenation.

CROSSREFS

Cf. A116094, A116226, A116232.

Sequence in context: A003748 A203410 A140412 * A159870 A203599 A114809

Adjacent sequences:  A116222 A116223 A116224 * A116226 A116227 A116228

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.