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!)
A045787 Squares with initial digit '4'. 11

%I #14 Sep 04 2021 15:29:42

%S 4,49,400,441,484,4096,4225,4356,4489,4624,4761,4900,40000,40401,

%T 40804,41209,41616,42025,42436,42849,43264,43681,44100,44521,44944,

%U 45369,45796,46225,46656,47089,47524,47961,48400,48841,49284,49729,400689

%N Squares with initial digit '4'.

%F a(n) = A045858(n)^2. - _Michel Marcus_, Sep 04 2021

%t Flatten[Table[Range[Ceiling[Sqrt[4 10^n]],Floor[Sqrt[5 10^n]]]^2, {n,5}]] (* _Harvey P. Dale_, Jun 15 2011 *)

%Y Cf. A045858.

%Y Cf. A045784, A045785, A045786, A045788, A045789, A045791, A045792, A045793.

%K nonn,base

%O 1,1

%A _Jeff Burch_

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 March 28 14:02 EDT 2024. Contains 371254 sequences. (Running on oeis4.)