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%I
%S 1,0,3,7,1,5,5,0,4,4,4,4,6,1,9,1,9,8,6,1,3,8,7,2,5,0,2,5,5,5,6,3,8,7,
%T 2,8,0,9,9,0,1,2,4,0,1,7,9,7,6,5,1,2,3,5,7,9,9,5,2,8,7,3,9,8,0,0,7,6,
%U 8,7,3,5,3,8,1,5,1,8,7,4,2,0,0,9,3,6,0,0,6,0,1,3,8,8,6,2,0,2,0
%N Decimal expansion of 19th root of 2.
%H Vincenzo Librandi, <a href="/A010781/b010781.txt">Table of n, a(n) for n = 1..5000</a>
%F Equals Product_{k>=0} (1 + (-1)^k/(19*k + 18)). - _Amiram Eldar_, Aug 01 2020
%t RealDigits[N[2^(1/19), 100]][[1]] (* _Vincenzo Librandi_, Apr 03 2013 *)
%o (PARI) sqrtn(2,19) \\ _Charles R Greathouse IV_, Apr 15 2014
%K nonn,cons
%O 1,3
%A _N. J. A. Sloane_.
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