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A007020
as a simple table
n
a(n)
3
1
4
1
5
1
6
2
7
5
8
13
9
33
10
85
11
199
12
445
13
947
14
1909
15
3713
16
7006
17
12765
18
22764
19
39540
[1,1,1,2,5,13,33,85,199,445,947,1909,3713,7006, 12765,22764,39540]
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Last modified June 29 23:48 EDT 2024. Contains 373856 sequences. (Running on oeis4.)
