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 A359584 #9 Jan 08 2023 14:25:39 %S A359584 3,5,6,10,12,17,19,20,21,23,24,27,29,31,33,34,35,37,38,39,40,42,45,46, %T A359584 48,53,54,55,58,61,62,65,66,68,70,73,74,75,76,78,80,83,84,89,90,92,96, %U A359584 101,103,106,108,110,113,116,119,122,123,124,125,127,129,130,132,133,136,139,140,141,146,147 %N A359584 Positions of odd terms in A329697. %C A359584 Numbers that occur on odd-indexed rows of array A334100. %o A359584 (PARI) isA359584(n) = A359583(n); %Y A359584 Positions of -1's in A359581, positions of 1's in A359583 (characteristic function). %Y A359584 Cf. A329697, A334100, A359585 (complement). %Y A359584 Cf. A334101, A334103, A334105 (subsequences). %K A359584 nonn %O A359584 1,1 %A A359584 _Antti Karttunen_, Jan 07 2023