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 A118985 #21 Jun 26 2024 14:11:20 %S A118985 1,2,3,5,7,11,19,40,91,214,577 %N A118985 Number of different values taken by the determinant of a symmetric real (0,1)-matrix of order n. %H A118985 Minfeng Wang, <a href="/A118985/a118985.cpp.txt">C++ program</a> %Y A118985 Cf. A089472, A108150, A118987, A118986, A373915, A373916. %Y A118985 Cf. A006125 (number of symmetric real (0,1)-matrices of order (n-1)). %K A118985 nonn,hard,more %O A118985 0,2 %A A118985 _Giovanni Resta_, May 08 2006 %E A118985 a(0)=1 prepended by _Alois P. Heinz_, Mar 16 2019 %E A118985 a(8) from _Minfeng Wang_, Jun 11 2024 %E A118985 a(9) from _Minfeng Wang_, Jun 12 2024 %E A118985 a(10) from _Hugo Pfoertner_, Jun 25 2024