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A229937 Nonprime odious numbers. 0


%S 1,4,8,14,16,21,22,25,26,28,32,35,38,42,44,49,50,52,55,56,62,64,69,70,

%T 74,76,81,82,84,87,88,91,93,94,98,100,104,110,112,115,117,118,121,122,

%U 124,128,133,134,138,140,143,145,146,148,152,155,158,161

%N Nonprime odious numbers.

%C Intersection of A018252 and A000069.

%C Also 1 together with A125495.

%e 28 is in the sequence because it is nonprime and because 28 written in base 2 is 11100 which has an odd number of 1's.

%Y Cf. A000069, A018252, A125495.

%K nonn,base

%O 1,2

%A _Omar E. Pol_, Oct 25 2013

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Last modified September 24 21:05 EDT 2021. Contains 347651 sequences. (Running on oeis4.)