login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A081160
as a simple table
n
a(n)
0
0
1
0
2
1
3
1
4
3
5
4
6
10
7
16
8
35
9
60
10
126
11
225
12
462
13
848
14
1716
15
3188
16
6435
17
12095
18
24310
[0,0,1,1,3,4,10,16,35,60,126,225,462,848,1716, 3188,6435,12095,24310]