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%I #9 May 20 2022 16:35:50
%S 1,2,3,4,5,6,7,8,9,10,11,13,14,15,16,17,19,21,22,23,25,26,27,29,31,32,
%T 33,34,35,37,38,39,41,43,46,47,49,51,53,55,57,58,59,61,62,64,65,67,69,
%U 71,73,74,77,79,81,82,83,85,86,87,89,91,93,94,95,97,101,103,106,107,109,111,113,115,118,119,121,122,123,125,127,128,129,131,133,134,137
%N Prime powers together with semiprimes.
%C Union of A000961 and A001358.
%C Although this is 1 together with A102466, it has arisen sufficiently often that it deserves its own entry.
%H N. J. A. Sloane, <a href="/A354144/b354144.txt">Table of n, a(n) for n = 1..10000</a>
%p isPPorSP := proc(n) if n=1 or nops(numtheory[factorset](n)) = 1 or numtheory[bigomega](n) = 2 then 'true' else 'false'; fi; end;
%Y Cf. A000961, A001221, A001222, A001358, A102466.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, May 20 2022
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