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 A364296 #9 Jul 27 2023 15:31:22 %S A364296 1,3,9,45,165,189,114595,330993,1277601 %N A364296 Odd numbers k for which A292943(k) == A292944(k). %C A364296 The first six terms are binary palindromes, in A006995. Most are multiples of 3. %C A364296 a(10) > 2^21 if it exists. %Y A364296 Odd terms in A364295. %Y A364296 Cf. A163511, A243071, A292943, A292944. %Y A364296 Cf. also A364495. %K A364296 nonn,more %O A364296 1,2 %A A364296 _Antti Karttunen_, Jul 27 2023