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 A011101 #20 Dec 27 2021 22:01:00
%S A011101 1,7,4,1,1,0,1,1,2,6,5,9,2,2,4,8,2,7,8,2,7,2,5,4,0,0,3,4,9,5,9,4,9,2,
%T A011101 1,9,7,9,5,8,2,5,0,8,4,8,6,9,6,0,0,6,0,9,6,4,8,3,7,1,9,1,3,7,0,1,3,5,
%U A011101 0,0,0,3,5,5,0,4,9,5,6,0,2,0,3,7,6,7,5,7,5,2,9,7,4,3,3,4,0,8,3
%N A011101 Decimal expansion of 5th root of 16.
%H A011101 Ivan Panchenko, <a href="/A011101/b011101.txt">Table of n, a(n) for n = 1..1000</a>
%F A011101 Equals Product_{k>=0} (1 + (-1)^k/(5*k + 1)). - _Amiram Eldar_, Jul 25 2020
%e A011101 1.741101126592248...
%t A011101 RealDigits[16^(1/5), 10, 128][[1]] (* _Alonso del Arte_, Jan 03 2015 *)
%o A011101 (PARI) sqrtn(16,5) \\ _Charles R Greathouse IV_, Apr 16 2014
%K A011101 nonn,cons
%O A011101 1,2
%A A011101 _N. J. A. Sloane_