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 A011439 #19 Feb 11 2025 14:49:57 %S A011439 1,1,6,1,5,8,6,3,4,9,6,4,1,5,4,2,2,8,1,8,0,8,7,2,1,2,2,4,2,4,5,6,7,6, %T A011439 8,4,3,4,5,5,4,3,6,6,3,8,1,9,0,7,2,9,7,7,5,8,4,4,4,6,6,4,2,8,4,1,5,5, %U A011439 2,0,2,3,3,3,0,0,2,0,2,2,8,6,6,0,6,2,0,2,4,2,3,9,4,2,8,3,2,2,0 %N A011439 Decimal expansion of 20th root of 20. %H A011439 Ivan Panchenko, <a href="/A011439/b011439.txt">Table of n, a(n) for n = 1..1000</a> %H A011439 <a href="/index/Ro#roots">Sequences related to the decimal expansion of the n-th root of x</a>, OEIS Index, Aug. 2017 %H A011439 <a href="/index/Al#algebraic_20">Index entries for algebraic numbers, degree 20</a>. %t A011439 RealDigits[N[20^(1/20),200]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Jan 26 2012 *) %o A011439 (PARI) sqrtn(20,20) \\ _M. F. Hasler_, Aug 26 2017 %Y A011439 Cf. A011200 ... A011424 (n-th root of x=5..19, with n=6..20); A011425 ... A011438 (n-th root of 20, with n=6, ..., 19) ; A011440 ... A011519 (n-th root of n = 21, ..., 100). %K A011439 nonn,cons %O A011439 1,3 %A A011439 _N. J. A. Sloane_