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!)

A140945 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 6
6 1
7 1
8 25
9 25
10 1
11 1
12 90
13 290
14 90
15 1
16 1
17 301
18 2450
19 2450
20 301
21 1
22 1
23 966
24 17451
25 41580
26 17451
27 966
28 1
29 1
30 3025
31 112035
32 544971
33 544971
34 112035
35 3025
36 1
37 1
38 9330
39 671980
40 6076350
41 12122502
42 6076350
43 671980
44 9330
45 1
46 1
47 28501
48 3846700
49 60738700
50 217523922
51 217523922
52 60738700
53 3846700
54 28501
55 1

[1,1,1,1,6,1,1,25,25,1,1,90,290,90,1,1,301,2450,
 2450,301,1,1,966,17451,41580,17451,966,1,1,3025,
 112035,544971,544971,112035,3025,1,1,9330,671980,
 6076350,12122502,6076350,671980,9330,1,1,28501,
 3846700,60738700,217523922,217523922,60738700,
 3846700,28501,1]

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 19 08:39 EDT 2024. Contains 371782 sequences. (Running on oeis4.)