login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A321887
as a simple table
n
a(n)
1
1
2
1
3
-1
4
2
5
1
6
-3
7
-1
8
3
9
2
10
3
11
1
12
-8
13
-1
14
-3
15
-3
16
5
17
1
18
7
19
-1
20
7
21
3
22
3
23
1
24
-15
[1,1,-1,2,1,-3,-1,3,2,3,1,-8,-1,-3,-3,5,1,7,-1,7, 3,3,1,-15]