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A116306
n times n+9 gives the concatenation of two numbers m and m+2.
4
3349727, 3922992, 6077000, 6650265, 4076746044440402197, 5923253955559597795, 7713109680804038561, 33652275100997044455421, 66347724899002955544571, 74261393963751156983420
OFFSET
1,1
EXAMPLE
6650265 * 6650274 = 4422608//4422610, where // denotes
concatenation.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved