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!)

A138771 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 3
6 1
7 6
8 11
9 5
10 2
11 24
12 50
13 26
14 14
15 6
16 120
17 274
18 154
19 94
20 54
21 24
22 720
23 1764
24 1044
25 684
26 444
27 264
28 120
29 5040
30 13068
31 8028
32 5508
33 3828
34 2568
35 1560
36 720
37 40320
38 109584
39 69264
40 49104
41 35664
42 25584
43 17520
44 10800
45 5040

[1,1,1,2,3,1,6,11,5,2,24,50,26,14,6,120,274,154,
 94,54,24,720,1764,1044,684,444,264,120,5040,13068,
 8028,5508,3828,2568,1560,720,40320,109584,69264,
 49104,35664,25584,17520,10800,5040]

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 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)