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 A333762 #6 Apr 07 2020 08:49:24 %S A333762 0,1,2,3,4,5,6,7,8,9,10,12,14,15,16,17,18,20,21,24,28,30,31,32,33,34, %T A333762 36,40,42,48,55,56,60,62,63,64,65,66,68,72,73,80,84,85,96,103,110,112, %U A333762 120,124,126,127,128,129,130,132,136,144,146,160,168,170,181 %N A333762 Fixed points of A333692. %C A333762 For any n >= 0, n belongs to this sequence iff 2*n also belongs to this sequence. %C A333762 This sequence contains A000079, A000225, A018900, A023758, A295235. %o A333762 (PARI) is(n, base=2)={ my (b=digits(n, base), p=[]); for (k=1, #b, p=concat(p, b[k]); if (b[k], p=Vecrev(p))); n==fromdigits(p, base) } %Y A333762 Cf. A000079, A000225, A018900, A023758, A295235, A333692, A333693. %K A333762 nonn,base %O A333762 1,3 %A A333762 _Rémy Sigrist_, Apr 04 2020