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A116299
n times n+8 gives the concatenation of two numbers m and m+1.
5
40, 53, 40354307, 59645686, 39704957106129738595969799927610, 44505281604832422780051712184759, 45053875613995255103944518907119, 54946124386004744896055481092874, 55494718395167577219948287815234
OFFSET
1,1
EXAMPLE
59645686 * 59645694 = 35576083//35576084, where // denotes
concatenation.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved