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Essentially the same as A003136.
0

%I #3 Jul 19 2005 03:00:00

%S 1,3,4,7,9,12,13,16,19,21,25,27,28,31,36,37,39,43,48,49,52,57,61,63,64

%N Essentially the same as A003136.

%K dead

%O 1,2