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 A169990 #14 Jan 07 2021 01:19:22 %S A169990 1,1,0,1,1,1,1,1,2,2,2,2,3,3,3,3,4,4,3,4,4,5,4,4,5,5,4,4,5,4,4,3,4,4, %T A169990 3,3,3,3,2,2,2,2,1,1,1,1,1,0,1,1 %N A169990 Expansion of Product_{i=0..m-1} (1 + x^(2*i+1)) for m=7. %C A169990 Product_{i=0..m-1} (1 + x^(2*i+1)) is the Poincaré polynomial for GL(m). %C A169990 Number of self-conjugate partitions of n into at most 7 parts. Also, number of partitions of n into distinct odd parts not larger than 13. - _Álvar Ibeas_, Aug 01 2020 %D A169990 H. Weyl, The Classical Groups, Princeton, 1946, see p. 233. %Y A169990 Cf. A000700, A169987, A169988, A169989, A169991, A169992, A169993, A169994, A169995. %K A169990 nonn,fini,full %O A169990 0,9 %A A169990 _N. J. A. Sloane_, Aug 29 2010