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!)

A291450 as a simple table

n a(n)
0 1
1 4
2 140
3 28
4 20020
5 4004
6 6466460
7 184756
8 148728580
9 29745716
10 133706993420
11 2431036244
12 449741705140
13 31885268
14 670910837521540
15 134182167504308
16 409926521725660940
17 4822664961478364
18 1278006214791766460
19 1921813856829724
20 242081282475556183660
21 4401477863191930612

[1,4,140,28,20020,4004,6466460,184756,148728580,
 29745716,133706993420,2431036244,449741705140,
 31885268,670910837521540,134182167504308,
 409926521725660940,4822664961478364,
 1278006214791766460,1921813856829724,
 242081282475556183660,4401477863191930612]

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 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)