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%I #2 Mar 30 2012 17:40:41
%S 345,647,829,878,933,33180,42271,57721,66812,316429537030539,
%T 319485532390187,328611858418903,332707864512186,339600869407914,
%U 347417506407134,355879196889561,370588838784509,383811170906508
%N n times n+9 gives the concatenation of two numbers m and m+8.
%e 66812 * 66821 = 44644//44652, where // denotes concatenation.
%Y Cf. A116216, A116342, A116346, A116355.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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