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!)

A169771 as a simple table

n a(n)
4 2
5 0
6 0
7 52
8 224
9 520
10 1616
11 10320
12 37024
13 125120
14 441200
15 1798576
16 6327472
17 22985504
18 81178008
19 301420176
20 1057619944
21 3818476576
22 13412523392
23 48285742208
24 168992600680
25 602349395456
26 2106360581920
27 7471875943776
28 26073917403304
29 92017860990176
30 320713651212384

[2,0,0,52,224,520,1616,10320,37024,125120,441200,
 1798576,6327472,22985504,81178008,301420176,
 1057619944,3818476576,13412523392,48285742208,
 168992600680,602349395456,2106360581920,
 7471875943776,26073917403304,92017860990176,
 320713651212384]

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 19:24 EDT 2024. Contains 371962 sequences. (Running on oeis4.)