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!)

A228902 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 3
5 1
6 1
7 6
8 45
9 1
10 1
11 10
12 505
13 2905
14 1
15 1
16 15
17 3045
18 412044
19 411500
20 1
21 1
22 21
23 12880
24 16106168
25 1218805926
26 100545716
27 1
28 1
29 28
30 43176
31 309616264
32 479536629727
33 9030648908720
34 37614371968
35 1
36 1
37 36
38 122640
39 3752248896
40 61545730104024
41 50139332516318674
42 139855355007409180
43 19977489354808
44 1

[1,1,1,1,3,1,1,6,45,1,1,10,505,2905,1,1,15,3045,
 412044,411500,1,1,21,12880,16106168,1218805926,
 100545716,1,1,28,43176,309616264,479536629727,
 9030648908720,37614371968,1,1,36,122640,
 3752248896,61545730104024,50139332516318674,
 139855355007409180,19977489354808,1]

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 April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)