A381218 - OEIS

%I #8 Feb 17 2025 13:01:58

%S 3,5,7,11,13,17,19,23,27,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,

%T 97,101,103,105,107,109,113,125,127,131,137,139,149,151,157,163,165,

%U 167,173,179,181,191,193,195,197,199,211,223,227,229,231,233,239

%N Odd numbers with both an odd number of prime factors (counted with multiplicity) and an odd number of distinct prime factors. (Intersection of A067019 and A098903.)

%H Harvey P. Dale, <a href="/A381218/b381218.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Range[1,301,2],AllTrue[{PrimeOmega[#],PrimeNu[#]},OddQ]&]

%Y Cf. A067019, A098903

%K nonn,easy

%O 1,1

%A _Harvey P. Dale_, Feb 17 2025