1,1
Primitive means that if n is present then k*n is not for k >= 2.
Cf. A074709.
Sequence in context: A063652 A032771 A074709 this_sequence A058581 A050263 A020869
Adjacent sequences: A074897 A074898 A074899 this_sequence A074901 A074902 A074903
nonn,base
G. Wilson v (rgwv(AT)rgwv.com), Sep 06 2002
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