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%I #10 Mar 09 2015 09:35:18
%S 67,1011,1819,3031,4041,4647,5253,5455,6061,6667,7677,8283,114115,
%T 138139,144145,160161,162163,178179,196197,210211,214215,234235,
%U 240241,246247,252253,258259,264265,274275,306307,312313,318319,322323,358359
%N Lucky numbers that are decimal concatenations of n with n + 1.
%Y Cf. A000959, A032641.
%K nonn,base
%O 1,1
%A _Patrick De Geest_, May 15 1998
%E More terms from _Sascha Kurz_, Mar 24 2002
%E Edited by _Charles R Greathouse IV_, Apr 30 2010
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