%I #4 Mar 30 2012 18:56:49
%S 11,22,33,44,55,66,77,88,99,110,112,113,114,115,116,117,118,119,220,
%T 221,223,224,225,226,227,228,229,330,331,332,334,335,336,337,338,339,
%U 440,441,442,443,445,446,447,448,449,550,551,552
%N Base 10 run lengths alternate: even, odd, even,...
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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