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A180733 as a simple table

n a(n)
2 1
3 1
4 6
5 1
6 20
7 1
8 70
9 84
10 252
11 1
12 495
13 1
14 3432
15 5005
16 12870
17 1
18 48620
19 1
20 184756
21 293930
22 705432
23 1
24 2704156
25 3268760
26 10400600
27 17383860
28 40116600
29 1
30 145422675
31 1
32 601080390
33 193536720
34 2333606220
35 2319959400
36 9075135300
37 1

[1,1,6,1,20,1,70,84,252,1,495,1,3432,5005,12870,1,
 48620,1,184756,293930,705432,1,2704156,3268760,
 10400600,17383860,40116600,1,145422675,1,
 601080390,193536720,2333606220,2319959400,
 9075135300,1]

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Last modified May 14 23:22 EDT 2024. Contains 372535 sequences. (Running on oeis4.)