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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #1 Sep 22 2004 03:00:00
%S 0,2,10,12,200,202,210,212,1000,1002,1010,1012,1200,1202,1210,1212,
%T 20000,20002,20010,20012,20200,20202,20210,20212,21000,21002,21010,
%U 21012,21200,21202,21210,21212,100000,100002,100010,100012,100200
%N Binary numbers with 2 replacing 1 in odd positions.
%K base,nonn
%O 0,2
%A Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 13 2004