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!)

A257589 as a simple table

n a(n)
0 1
1 9
2 50
3 245
4 1134
5 5082
6 22308
7 96525
8 413270
9 1755182
10 7407036
11 31097794
12 130007500
13 541574100
14 2249204040
15 9316746045
16 38504502630
17 158814867750
18 653887380300
19 2688007311990
20 11034286426020
21 45238127719980
22 185252191371000
23 757818686552850
24 3097059857724924

[1,9,50,245,1134,5082,22308,96525,413270,1755182,
 7407036,31097794,130007500,541574100,2249204040,
 9316746045,38504502630,158814867750,653887380300,
 2688007311990,11034286426020,45238127719980,
 185252191371000,757818686552850,3097059857724924]

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 April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)