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 A011104 #23 Jul 08 2025 01:56:05 %S A011104 1,8,0,1,9,8,3,1,2,7,3,1,7,1,4,2,3,0,5,1,8,2,5,5,3,9,5,2,9,6,1,8,9,0, %T A011104 2,5,8,9,4,3,7,0,9,7,0,2,2,8,0,0,5,3,2,6,8,0,3,7,2,5,2,0,3,0,4,2,9,4, %U A011104 0,7,6,2,3,5,6,3,0,6,7,0,2,6,6,8,8,0,4,4,2,5,7,5,4,4,4,8,3,8,8 %N A011104 Decimal expansion of 5th root of 19. %H A011104 Ivan Panchenko, <a href="/A011104/b011104.txt">Table of n, a(n) for n = 1..1000</a> %H A011104 Steven Finch, <a href="http://www.people.fas.harvard.edu/~sfinch/csolve/av.pdf">Pattern-Avoiding Permutations</a> [Broken link?] %H A011104 Steven Finch, <a href="/A240885/a240885.pdf">Pattern-Avoiding Permutations</a> [Cached copy, with permission] %e A011104 1.80198312731714230518255395... %t A011104 RealDigits[19^(1/5), 10, 100][[1]] (* _Alonso del Arte_, Feb 19 2015 *) %o A011104 (PARI) sqrtn(19,5) \\ _Charles R Greathouse IV_, Apr 16 2014 %o A011104 (Magma) Root(19,5); // _Vincenzo Librandi_, Feb 20 2015 %K A011104 nonn,cons,easy %O A011104 1,2 %A A011104 _N. J. A. Sloane_