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 A170970 #7 Jan 03 2021 21:13:16
%S A170970 1,1,0,0,0,1,1,0,0,1,1,0,0,1,2,1,0,1,2,1,0,1,3,2,0,1,3,3,1,0,3,4,1,0,
%T A170970 2,4,2,0,2,5,3,0,1,4,4,1,1,4,4,1,0,3,5,2,0,2,4,2,0,1,4,3,0,1,3,3,1,0,
%U A170970 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 A170970 Expansion of Product_{i=0..m-1} (1 + x^(4*i+1)) for m = 7.
%t A170970 CoefficientList[Series[Product[1+x^(4i+1),{i,0,6}],{x,0,100}],x] (* _Harvey P. Dale_, Jun 20 2015 *)
%Y A170970 Cf. A169975, A170966-A170984.
%K A170970 nonn,fini,full
%O A170970 0,15
%A A170970 _N. J. A. Sloane_, Aug 29 2010