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A027611 as a simple table

n a(n)
1 1
2 1
3 2
4 3
5 12
6 10
7 20
8 35
9 280
10 252
11 2520
12 2310
13 27720
14 25740
15 24024
16 45045
17 720720
18 680680
19 4084080
20 3879876
21 739024
22 235144
23 5173168
24 14872858
25 356948592
26 343219800
27 2974571600
28 2868336900
29 80313433200
30 77636318760

[1,1,2,3,12,10,20,35,280,252,2520,2310,27720,
 25740,24024,45045,720720,680680,4084080,3879876,
 739024,235144,5173168,14872858,356948592,
 343219800,2974571600,2868336900,80313433200,
 77636318760]

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Last modified March 29 10:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)