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%I #5 Dec 05 2013 19:55:57
%S 1,10,111,1212,50505,101010,7070707,16161616,111111111,1010101010,
%T 29292929292,121212121212,0,14141414141414,525252525252525,
%U 1616161616161616,0,101010101010101010,0,20202020202020202020
%N Smallest n-digit multiple of n in which the even-numbered digits are all equal and the odd-numbered digits are all equal, or 0 if no such number exists.
%Y Cf. A078253.
%K base,nonn
%O 1,2
%A _Amarnath Murthy_, Nov 24 2002
%E Corrected and extended by _Sascha Kurz_, Jan 04 2003
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