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A308087 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 13
5 45
6 153
7 515
8 1767
9 6167
10 21697
11 76661
12 271973
13 968561
14 3460677
15 12399661
16 44534647
17 160285049
18 577949447
19 2087375443
20 7550053527
21 27344761057
22 99155777619
23 359943568005
24 1307923066305
25 4756914915657
26 17315390737219
27 63077564876055

[1,1,1,3,13,45,153,515,1767,6167,21697,76661,
 271973,968561,3460677,12399661,44534647,160285049,
 577949447,2087375443,7550053527,27344761057,
 99155777619,359943568005,1307923066305,
 4756914915657,17315390737219,63077564876055]

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Last modified April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)