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A059838 as a simple table

n a(n)
0 0
1 0
2 1
3 3
4 15
5 75
6 495
7 3465
8 29295
9 263655
10 2735775
11 30093525
12 370945575
13 4822292475
14 68916822975
15 1033752344625
16 16813959537375
17 285837312135375
18 5214921734397375
19 99083512953550125
20 2004231846526284375
21 42088868777051971875
22 934957186489800849375

[0,0,1,3,15,75,495,3465,29295,263655,2735775,
 30093525,370945575,4822292475,68916822975,
 1033752344625,16813959537375,285837312135375,
 5214921734397375,99083512953550125,
 2004231846526284375,42088868777051971875,
 934957186489800849375]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)