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!)

A198204 as a simple table

n a(n)
1 1
2 1
3 2
4 1
5 9
6 12
7 1
8 28
9 120
10 120
11 1
12 75
13 750
14 2100
15 1680
16 1
17 186
18 3780
19 21840
20 45360
21 30240
22 1
23 441
24 16856
25 176400
26 705600
27 1164240
28 665280
29 1
30 1016
31 69552
32 1224720
33 8316000
34 25280640
35 34594560
36 17297280
37 1
38 2295
39 272250
40 7692300
41 82577880
42 408648240
43 998917920
44 1167566400
45 518918400

[1,1,2,1,9,12,1,28,120,120,1,75,750,2100,1680,1,
 186,3780,21840,45360,30240,1,441,16856,176400,
 705600,1164240,665280,1,1016,69552,1224720,
 8316000,25280640,34594560,17297280,1,2295,272250,
 7692300,82577880,408648240,998917920,1167566400,
 518918400]

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 1 12:42 EDT 2024. Contains 373023 sequences. (Running on oeis4.)