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A138654 as a simple table

n a(n)
0 0
1 3
2 1
3 23
4 97
5 423
6 2961
7 4343
8 63169
9 245575
10 408305
11 1809559
12 84001
13 50919655
14 155110993
15 548906039
16 2768600449
17 15085235847
18 36877174193
19 258140219351
20 707469907681
21 2753266098215
22 10476769665297
23 20560829523831
24 73557062489153
25 233424460713415

[0,3,1,23,97,423,2961,4343,63169,245575,408305,
 1809559,84001,50919655,155110993,548906039,
 2768600449,15085235847,36877174193,258140219351,
 707469907681,2753266098215,10476769665297,
 20560829523831,73557062489153,233424460713415]

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Last modified October 18 17:13 EDT 2019. Contains 328186 sequences. (Running on oeis4.)