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A066273
as a simple table
n
a(n)
1
0
2
0
3
0
4
1
5
0
6
0
7
4
8
0
9
3
10
24
11
4
12
18
13
151
14
25
15
136
16
992
17
184
18
938
19
6769
20
1300
21
6792
22
47469
[0,0,0,1,0,0,4,0,3,24,4,18,151,25,136,992,184,938, 6769,1300,6792,47469]