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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A155539 a(n) = n^(n+3) + (n+3)^n. 2

%I

%S 1,5,57,945,18785,423393,10609137,292475249,8804293473,287589316833,

%T 10137858491849,383799398752905,15536767912476993,669920208810550337,

%U 30659724555890596833,1484638520651877849057,75846305139481944586817

%N a(n) = n^(n+3) + (n+3)^n.

%C 1^4 + 4^1 = 5, 2^5 + 5^2 = 57, ...

%H Vincenzo Librandi, <a href="/A155539/b155539.txt">Table of n, a(n) for n = 0..300</a>

%t lst={};Do[m=n+3;q=n^m+m^n;AppendTo[lst,q],{n,0,4!}];lst

%o (MAGMA) [n^(n+3)+(n+3)^n: n in [0..20] ]; // _Vincenzo Librandi_, Aug 25 2011

%Y Cf. A046065, A051442, A007925, A051489, A153217, A076980.

%K nonn

%O 0,2

%A _Vladimir Joseph Stephan Orlovsky_, Jan 23 2009

%E Offset corrected by _Arkadiusz Wesolowski_, Aug 24 2011

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 September 20 03:32 EDT 2019. Contains 327209 sequences. (Running on oeis4.)