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 A170969 #5 Jan 03 2021 21:15:24
%S A170969 1,1,0,0,0,1,1,0,0,1,1,0,0,1,2,1,0,1,2,1,0,1,3,2,0,0,2,3,1,0,2,3,1,0,
%T A170969 1,3,2,0,1,3,2,0,0,2,3,1,0,1,2,1,0,1,2,1,0,0,1,1,0,0,1,1,0,0,0,1,1
%N A170969 Expansion of Product_{i=0..m-1} (1 + x^(4*i+1)) for m = 6.
%Y A170969 Cf. A169975, A170966-A170984.
%K A170969 nonn,fini,full
%O A170969 0,15
%A A170969 _N. J. A. Sloane_, Aug 29 2010