login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A017934 Powers of sqrt(10) rounded down. 10

%I #38 Feb 10 2024 11:36:42

%S 1,3,10,31,100,316,1000,3162,10000,31622,100000,316227,1000000,

%T 3162277,10000000,31622776,100000000,316227766,1000000000,3162277660,

%U 10000000000,31622776601,100000000000

%N Powers of sqrt(10) rounded down.

%H Vincenzo Librandi, <a href="/A017934/b017934.txt">Table of n, a(n) for n = 0..1000</a>

%F a(n)=floor(sqrt(10^n)). - _Zak Seidov_

%t Floor[Sqrt[10^Range[0,100]]] (* _Zak Seidov_ *)

%o (Magma) A017934 := func< n | Isqrt(10^n) >; // _Jason Kimberley_, Aug 19 2011

%o (Magma) A017934 := func< n | Floor(Sqrt(RealField(n)!10^n)) >; // _Jason Kimberley_, Aug 19 2011

%o (PARI) a(n)=sqrtint(10^n) \\ _Charles R Greathouse IV_, Nov 18 2011

%Y Cf. A010467 Decimal expansion of sqrt(10), A131581, A136582, A175733, A175734.

%K nonn

%O 0,2

%A _N. J. A. Sloane_.

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 06:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)