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A293101 as a simple table

n a(n)
1 0
2 0
3 9
4 42
5 150
6 596
7 2220
8 8376
9 31959
10 121768
11 465365
12 1784742
13 6865278
14 26474028
15 102325886
16 396332796
17 1538015240
18 5978805044
19 23278677150
20 90767915948
21 354389747119
22 1385333740384
23 5421345875519
24 21237273165782
25 83270840712919

[0,0,9,42,150,596,2220,8376,31959,121768,465365,
 1784742,6865278,26474028,102325886,396332796,
 1538015240,5978805044,23278677150,90767915948,
 354389747119,1385333740384,5421345875519,
 21237273165782,83270840712919]

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Last modified July 6 15:57 EDT 2022. Contains 355111 sequences. (Running on oeis4.)