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A127724 as a simple table

n a(n)
1 1
2 2
3 6
4 12
5 40
6 120
7 126
8 252
9 880
10 2520
11 2640
12 10880
13 30240
14 32640
15 37800
16 37926
17 55440
18 75852
19 685440
20 758520
21 831600
22 2600640
23 5533920
24 6917400
25 9102240
26 10281600
27 11377800
28 16687440
29 152182800
30 206317440
31 250311600
32 475917120
33 715816960
34 866829600

[1,2,6,12,40,120,126,252,880,2520,2640,10880,
 30240,32640,37800,37926,55440,75852,685440,758520,
 831600,2600640,5533920,6917400,9102240,10281600,
 11377800,16687440,152182800,206317440,250311600,
 475917120,715816960,866829600]

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)