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A048642 as a simple table

n a(n)
0 1
1 1
2 3
3 6
4 36
5 252
6 1260
7 5040
8 60480
9 786240
10 11793600
11 165110400
12 1651104000
13 18162144000
14 163459296000
15 1307674368000
16 31384184832000
17 784604620800000
18 21184324761600000
19 550792443801600000
20 16523773314048000000

[1,1,3,6,36,252,1260,5040,60480,786240,11793600,
 165110400,1651104000,18162144000,163459296000,
 1307674368000,31384184832000,784604620800000,
 21184324761600000,550792443801600000,
 16523773314048000000]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)