A011104 - OEIS

%I #21 Sep 08 2022 08:44:37

%S 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 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 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 Decimal expansion of 5th root of 19.

%H Ivan Panchenko, <a href="/A011104/b011104.txt">Table of n, a(n) for n = 1..1000</a>

%H Steven Finch, <a href="http://www.people.fas.harvard.edu/~sfinch/csolve/av.pdf">Pattern-Avoiding Permutations</a> [Broken link?]

%H Steven Finch, <a href="/A240885/a240885.pdf">Pattern-Avoiding Permutations</a> [Cached copy, with permission]

%e 1.80198312731714230518255395...

%t RealDigits[19^(1/5), 10, 100][[1]] (* _Alonso del Arte_, Feb 19 2015 *)

%o (PARI) sqrtn(19,5) \\ _Charles R Greathouse IV_, Apr 16 2014

%o (Magma) Root(19,5); // _Vincenzo Librandi_, Feb 20 2015

%K nonn,cons,easy

%O 1,2

%A _N. J. A. Sloane_.