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A146819
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
3
9
9
10
19
11
39
12
117
13
351
14
957
15
3341
16
15997
17
83175
18
424759
19
2415699
20
15982837
21
113541201
22
873618675
[1,1,1,1,1,1,1,3,9,19,39,117,351,957,3341,15997, 83175,424759,2415699,15982837,113541201,873618675]
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Last modified April 19 14:04 EDT 2024. Contains 371792 sequences. (Running on oeis4.)