This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A381218 #8 Feb 17 2025 13:01:58 %S A381218 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 A381218 97,101,103,105,107,109,113,125,127,131,137,139,149,151,157,163,165, %U A381218 167,173,179,181,191,193,195,197,199,211,223,227,229,231,233,239 %N A381218 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 A381218 Harvey P. Dale, <a href="/A381218/b381218.txt">Table of n, a(n) for n = 1..1000</a> %t A381218 Select[Range[1,301,2],AllTrue[{PrimeOmega[#],PrimeNu[#]},OddQ]&] %Y A381218 Cf. A067019, A098903 %K A381218 nonn,easy %O A381218 1,1 %A A381218 _Harvey P. Dale_, Feb 17 2025