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 A170963 #13 Jan 05 2021 02:39:57
%S A170963 1,0,0,1,0,0,0,1,0,0,1,1,0,0,1,1,0,0,2,1,0,1,2,1,0,1,3,1,0,2,3,1,0,3,
%T A170963 4,1,1,4,4,1,1,5,5,0,2,7,4,0,3,8,4,0,5,9,3,1,6,10,3,1,9,10,2,2,10,10,
%U A170963 2,3,13,10,1,5,14,9,1,7,16,8,1,9,16,7,1,11,18,5,2,14,16,4,3,16,16,3,5,18,14
%N A170963 Expansion of Product_{i=1..m} (1 + x^(4*i-1)) for m = 10.
%C A170963 Product_{i=1..m} (1 + x^(4*i-1)) is the Poincaré polynomial for both Sp(2m) and O(2m+1).
%D A170963 H. Weyl, The Classical Groups, Princeton, 1946, see p. 238.
%H A170963 Nathaniel Johnston, <a href="/A170963/b170963.txt">Table of n, a(n) for n = 0..210</a> (full sequence)
%F A170963 a(n) = a(210-n). - _Rick L. Shepherd_, Mar 01 2013
%Y A170963 Cf. A000700, A147599, A169975, A170956-A170965.
%K A170963 nonn,fini,full,easy
%O A170963 0,19
%A A170963 _N. J. A. Sloane_, Aug 29 2010