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n times n+5 gives the concatenation of two numbers m and m-8.
5

%I #2 Mar 30 2012 17:40:40

%S 7282816,8171726,4550754022124826465,5449245977875173531,

%T 8176518705147900804,8951999555715882882349355522887,

%U 9861090464806791973258446431978

%N n times n+5 gives the concatenation of two numbers m and m-8.

%e 8171726 * 8171731 = 6677714//6677706, where // denotes

%e concatenation.

%Y Cf. A116105, A116228, A116235, A116237, A116249.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006