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Duplicate of A077953.
1

%I #9 Sep 14 2023 04:22:14

%S 1,1,1,1,3,3,5,5,11,11,21,21,43,43,85,85,171,171,341,341,683,683,1365,

%T 1365

%N Duplicate of A077953.

%K dead

%O 0,5