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 A128178 #11 Jan 05 2025 23:39:22 %S A128178 3,0,4,8,2,6,0,4,8,2,6,0,4,8,2,6,0,4,8,2,6,0,4,8,1,0,1,9,1,1,7,2,1,5, %T A128178 2,1,3,3,1,1,4,1,9,5,1,7,6,1,5,6,1,3,7,1,1,8,1,9,9,1,7,0,2,5,0,2,3,1, %U A128178 2,1,2,2,9,3,2,7,4,2,5,4,2,3,5,2,1,6,2,9,7,2,7,8,2,5,8,2,3,9,2,1,0,3,9,1,3 %N A128178 a(n) = A007376(8n+3). %t A128178 lim=104;A007376=Flatten[ IntegerDigits /@ Range[lim*8+3]]; Array[A007376[[8#+3]]&,lim+1,0] (* _James C. McMahon_, Jan 05 2025 *) %Y A128178 Cf. A007376. %K A128178 nonn,base %O A128178 0,1 %A A128178 _N. J. A. Sloane_, Jul 23 2008