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 A091945 #20 Dec 07 2022 06:15:53 %S A091945 0,1,3,5,9,11,19,21,33,35,37,39,43,45,69,73,75,77,83,85,93,139,141, %T A091945 147,149,151,153,155,165,171,173,189,267,275,277,279,283,293,297,299, %U A091945 301,309,315,325,331,333,339,341,365,537,549,553,555,563,565,567,579,585 %N A091945 Numbers n such that there is no k, 0 <= k < n, satisfying A002487(k) = A002487(n). %H A091945 Rémy Sigrist, <a href="/A091945/b091945.txt">Table of n, a(n) for n = 1..7297</a> %H A091945 Rémy Sigrist, <a href="/A091945/a091945.gp.txt">PARI program</a> %H A091945 <a href="/index/St#Stern">Index entries for sequences related to Stern's sequences</a> %o A091945 (PARI) isok(n) = (A091926(n) == n); \\ _Michel Marcus_, Dec 06 2013 %o A091945 (PARI) See Links section. %Y A091945 Cf. A002487, A091926. %K A091945 nonn %O A091945 1,3 %A A091945 _Benoit Cloitre_, Mar 11 2004 %E A091945 Leading 0 inserted and name adapted by _Rémy Sigrist_, Dec 07 2022