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

 

Logo

Annual Appeal: Please make a donation to keep the OEIS running. In 2018 we replaced the server with a faster one, added 20000 new sequences, and reached 7000 citations (often saying "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A049684 as a simple table

n a(n)
0 0
1 1
2 9
3 64
4 441
5 3025
6 20736
7 142129
8 974169
9 6677056
10 45765225
11 313679521
12 2149991424
13 14736260449
14 101003831721
15 692290561600
16 4745030099481
17 32522920134769
18 222915410843904
19 1527884955772561
20 10472279279564025

[0,1,9,64,441,3025,20736,142129,974169,6677056,
 45765225,313679521,2149991424,14736260449,
 101003831721,692290561600,4745030099481,
 32522920134769,222915410843904,1527884955772561,
 10472279279564025]

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 December 18 10:43 EST 2018. Contains 318219 sequences. (Running on oeis4.)