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A011547 Decimal expansion of sqrt(2) truncated to n places. 3

%I

%S 1,14,141,1414,14142,141421,1414213,14142135,141421356,1414213562,

%T 14142135623,141421356237,1414213562373,14142135623730,

%U 141421356237309,1414213562373095,14142135623730950

%N Decimal expansion of sqrt(2) truncated to n places.

%D W. Rudin, Principles of Mathematical Analysis, 3rd ed., McGraw-Hill, 1976.

%H Vincenzo Librandi, <a href="/A011547/b011547.txt">Table of n, a(n) for n = 0..200</a>

%t With[{sqrt2=N[Sqrt[2],30]},Table[IntegerPart[sqrt2 10^n],{n,0,20}]] (* _Harvey P. Dale_, Sep 22 2011 *)

%t IntegerPart[Table[N[Sqrt[2], k] 10^(k - 1), {k, 20}]] (* _Vincenzo Librandi_, Aug 16 2013 *)

%Y Cf. A011548.

%K nonn,base

%O 0,2

%A _N. J. A. Sloane_.

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Last modified June 15 13:25 EDT 2021. Contains 345048 sequences. (Running on oeis4.)