login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A138654 7^n mod 4^n. 1

%I

%S 0,3,1,23,97,423,2961,4343,63169,245575,408305,1809559,84001,50919655,

%T 155110993,548906039,2768600449,15085235847,36877174193,258140219351,

%U 707469907681,2753266098215,10476769665297,20560829523831,73557062489153,233424460713415

%N 7^n mod 4^n.

%t Table[PowerMod[7,n,4^n],{n,0,30}] (* _Harvey P. Dale_, Aug 26 2019 *)

%K nonn

%O 0,2

%A _N. J. A. Sloane_, May 20 2008

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 October 20 20:24 EDT 2019. Contains 328273 sequences. (Running on oeis4.)