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 A179074 #6 Dec 05 2018 08:01:53
%S A179074 -2,-32,256,-8192,-262144,5242880,-33554432,-2684354560,8589934592000,
%T A179074 932385860354048,160159261748363264,-1125899906842624,
%U A179074 -225179981368524800,5260204364768739328,43977037871723571052544
%N A179074 A179072 for p == 1 (mod 4).
%C A179074 It appears that a(n) is even.
%t A179074 a72[p_] := Module[{k}, k = (p-1)/2; Det @ Table[JacobiSymbol[i+j, p], {i, 1, k}, {j, 1, k}]];
%t A179074 a72 /@ Select[Range[1, 201, 4], PrimeQ] (* _Jean-François Alcover_, Dec 05 2018 *)
%Y A179074 Cf. A179071, A179072, A179073.
%K A179074 sign
%O A179074 1,1
%A A179074 _Jonathan Sondow_ and _Wadim Zudilin_, Jun 29 2010