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 A359596 #12 Jan 12 2023 18:43:33 %S A359596 1,9,15,21,25,33,35,39,49,51,55,57,65,69,77,85,87,91,93,95,111,115, %T A359596 119,121,123,129,133,135,141,143,145,155,159,161,169,177,183,185,187, %U A359596 189,201,203,205,209,213,215,217,219,221,235,237,247,249,253,259,265,267,287,289,291,295,297,299,301,303 %N A359596 Positions of odd terms in A358777. %C A359596 After the initial 1, 135 = 3^3 * 5 is the next term that is not an odd semiprime (A046315). See A359597. %o A359596 (PARI) isA359596(n) = A359595(n); %Y A359596 Positions of odd terms in A358777 and in A359589. %Y A359596 Union of A046315 and A359597. %Y A359596 Subsequence of A046337. %Y A359596 Cf. A353557, A359595 (characteristic function). %K A359596 nonn %O A359596 1,2 %A A359596 _Antti Karttunen_, Jan 09 2023