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a(n) = n-th digit after decimal point of cube root of n.
1

%I #13 May 10 2022 13:40:44

%S 0,5,2,4,7,0,1,0,3,0,6,6,7,2,0,3,5,7,3,1,5,6,3,6,3,8,0,5,0,2,7,1,0,7,

%T 4,6,4,0,2,1,9,8,7,6,4,0,6,2,3,8,6,8,2,0,4,2,6,0,0,8,9,4,8,0,1,1,1,5,

%U 0,6,5,2,8,0,5,8,1,5,9,0,9,1,7,8,7,6,4,1,7,3,4,3,5,0,9,8,8,7,2,8,8,8

%N a(n) = n-th digit after decimal point of cube root of n.

%H G. C. Greubel, <a href="/A029683/b029683.txt">Table of n, a(n) for n = 1..10000</a>

%t Array[ Function[ n, RealDigits[ N[ Power[ n, 1/3 ], n+6 ] ]// (#[ [ 1, #[ [ 2 ] ]+n ] ])& ], 110 ]

%t Table[NumberDigit[Surd[n,3],-n],{n,110}] (* _Harvey P. Dale_, May 10 2022 *)

%K nonn,base

%O 1,2

%A _N. J. A. Sloane_, _Olivier GĂ©rard_