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!)

A126986 as a simple table

n a(n)
0 1
1 -4
2 12
3 -40
4 124
5 -408
6 1272
7 -4176
8 13020
9 -42808
10 133096
11 -439344
12 1358872
13 -4514800
14 13853040
15 -46469280
16 140945820
17 -479312760
18 1430085000
19 -4958382960
20 14453014920
21 -51500944080
22 145230007440
23 -537922074720
24 1446902948184
25 -5662012752048
26 14228883685392

[1,-4,12,-40,124,-408,1272,-4176,13020,-42808,
 133096,-439344,1358872,-4514800,13853040,
 -46469280,140945820,-479312760,1430085000,
 -4958382960,14453014920,-51500944080,145230007440,
 -537922074720,1446902948184,-5662012752048,
 14228883685392]

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 09:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)