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 A170960 #13 Jan 05 2021 02:39:42
%S A170960 1,0,0,1,0,0,0,1,0,0,1,1,0,0,1,1,0,0,2,1,0,1,2,1,0,1,3,1,0,2,3,0,0,3,
%T A170960 3,0,1,4,2,0,1,4,2,0,2,5,1,0,3,4,1,0,4,4,0,1,4,3,0,1,5,2,0,2,4,1,0,2,
%U A170960 4,1,0,3,3,0,0,3,2,0,1,3,1,0,1,2,1,0,1,2,0,0,1,1,0,0,1,1,0,0,1,0,0,0,1,0,0
%N A170960 Expansion of Product_{i=1..m} (1 + x^(4*i-1)) for m = 7.
%C A170960 Product_{i=1..m} (1 + x^(4*i-1)) is the Poincaré polynomial for both Sp(2m) and O(2m+1).
%D A170960 H. Weyl, The Classical Groups, Princeton, 1946, see p. 238.
%H A170960 Nathaniel Johnston, <a href="/A170960/b170960.txt">Table of n, a(n) for n = 0..105</a> (full sequence)
%F A170960 a(n) = a(105-n). - _Rick L. Shepherd_, Mar 01 2013
%Y A170960 Cf. A000700, A147599, A169975, A170956-A170965.
%K A170960 nonn,fini,full,easy
%O A170960 0,19
%A A170960 _N. J. A. Sloane_, Aug 29 2010