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!)

A171657 as a simple table

n a(n)
1 1
2 1
3 0
4 -3
5 4
6 0
7 -30
8 0
9 30
10 34
11 0
12 -462
13 0
14 1050
15 0
16 -630
17 496
18 0
19 -10560
20 0
21 40320
22 0
23 -52920
24 0
25 22680
26 11056
27 0
28 -338448
29 0
30 1907400
31 0
32 -4074840
33 0
34 3742200
35 0
36 -1247400
37 349504
38 0
39 -14523600
40 0
41 112192080
42 0
43 -344504160
44 0
45 505945440
46 0

[1,1,0,-3,4,0,-30,0,30,34,0,-462,0,1050,0,-630,
 496,0,-10560,0,40320,0,-52920,0,22680,11056,0,
 -338448,0,1907400,0,-4074840,0,3742200,0,-1247400,
 349504,0,-14523600,0,112192080,0,-344504160,0,
 505945440,0]

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 May 21 01:24 EDT 2024. Contains 372720 sequences. (Running on oeis4.)