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 A210358 #14 Jun 13 2025 01:09:26
%S A210358 1,-6,-180,-4200,-117600,-3969000,-115259760,-3030051024,
%T A210358 -106051785840,-3363975014400,-98227319533200,-3110531785218000,
%U A210358 -103492384705710000,-3211851661880141280,-96355549856404238400,-3303308595002047632000,-106681852579497947388000
%N A210358 Minimum value in the inverse of Hilbert's matrix.
%H A210358 T. D. Noe, <a href="/A210358/b210358.txt">Table of n, a(n) for n = 1..100</a>
%t A210358 Table[im = Inverse[HilbertMatrix[n]]; Min[Flatten[im]], {n, 20}]
%o A210358 (PARI) a(n)=vecmin(1/mathilbert(n)) \\ _Hugo Pfoertner_, Feb 11 2020
%Y A210358 Cf. A061065, A189765 (inverse matrix), A210357.
%K A210358 sign
%O A210358 1,2
%A A210358 _T. D. Noe_, Apr 02 2012