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!)
A004227 a(n) = ceiling(1000*log_10(n)). 0

%I

%S 0,302,478,603,699,779,846,904,955,1000,1042,1080,1114,1147,1177,1205,

%T 1231,1256,1279,1302,1323,1343,1362,1381,1398,1415,1432,1448,1463,

%U 1478,1492,1506,1519,1532,1545

%N a(n) = ceiling(1000*log_10(n)).

%t Ceiling[1000*Log10[Range[40]]] (* _Harvey P. Dale_, Jul 19 2018 *)

%K nonn

%O 1,2

%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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 25 13:02 EST 2022. Contains 350572 sequences. (Running on oeis4.)