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%I #4 Oct 12 2013 15:24:51
%S 1,6,16,66,166,666,1666,6666,16666,66666,166666,666666
%N Result of left concatenation of the next Roman-numeral symbol.
%e a(1) = I; a(2) = VI; a(3) = XVI.
%K easy,nonn,base,fini,full
%O 1,2
%A _Greg Huber_, May 09 2006
%E Edited by _Charles R Greathouse IV_, Apr 25 2010
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