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 A092176 #3 Aug 27 2024 02:50:50 %S A092176 0,1,3,6,12,21,39,72,138,269,526,1041,2067,4116,8214,16409,32796, %T A092176 65565,131104,262178,524323,1048614,2097192,4194347,8388655,16777265, %U A092176 33554482,67108916,134217781 %N A092176 A067076 + A000079/2. %Y A092176 Cf. A067076, A000079. %K A092176 nonn,less,uned %O A092176 0,3 %A A092176 David G. Williams (davwill24(AT)aol.com), Apr 03 2004