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A019589
as a simple table
n
a(n)
0
1
1
1
2
2
3
5
4
16
5
59
6
246
7
1105
8
5270
9
26231
10
135036
11
713898
12
3857113
13
21220020
14
118547774
15
671074583
[1,1,2,5,16,59,246,1105,5270,26231,135036,713898, 3857113,21220020,118547774,671074583]
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Last modified March 18 21:02 EDT 2024. Contains 370951 sequences. (Running on oeis4.)