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%I #2 Mar 30 2012 17:40:40
%S 4,94,455,539,994,7665,9994,72721,99994,356429,643565,999994,9090910,
%T 9999994,35294118,64705876,99999994,335664329,664335665,684210520,
%U 818181819,838056674,846153847,866028702,980125139,999999994
%N n times n+7 gives the concatenation of a number m with itself.
%Y Cf. A116160, A116283, A116290, A116292, A116298.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006