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 A354361 #5 May 25 2022 22:51:47 %S A354361 1,2,3,6,7,13,14,19,21,23,26,38,39,41,42,43,46,57,67,69,78,82,86,91, %T A354361 103,107,114,123,129,133,134,138,161,179,182,201,206,214,246,247,258, %U A354361 266,273,287,299,301,309,321,322,358,379,399,402,419,437,469,483,494,533,537,546,559,574,598,602,618,642,643,721 %N A354361 Numbers k such that A354203(sigma(A354202(k))) = 1. %C A354361 Applying A354202 and sorting into ascending order gives A354357. %o A354361 (PARI) isA354361(n) = (1==A354206(n)); \\ Uses the program given in A354206. %Y A354361 Positions of ones in A354206. %Y A354361 Cf. A000203, A354202, A354203, A354357. %K A354361 nonn %O A354361 1,2 %A A354361 _Antti Karttunen_, May 24 2022