The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)

A022171 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 8
5 1
6 1
7 57
8 57
9 1
10 1
11 400
12 2850
13 400
14 1
15 1
16 2801
17 140050
18 140050
19 2801
20 1
21 1
22 19608
23 6865251
24 48177200
25 6865251
26 19608
27 1
28 1
29 137257
30 336416907
31 16531644851
32 16531644851
33 336416907
34 137257
35 1
36 1

[1,1,1,1,8,1,1,57,57,1,1,400,2850,400,1,1,2801,
 140050,140050,2801,1,1,19608,6865251,48177200,
 6865251,19608,1,1,137257,336416907,16531644851,
 16531644851,336416907,137257,1,1]

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 June 10 18:45 EDT 2024. Contains 373280 sequences. (Running on oeis4.)