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A034381 as a simple table

n a(n)
1 1
2 2
3 3
4 12
5 30
6 360
7 840
8 10080
9 60480
10 907200
11 3991680
12 119750400
13 518918400
14 14529715200
15 163459296000
16 2615348736000
17 22230464256000
18 1067062284288000
19 6758061133824000
20 304112751022080000
21 4257578514309120000
22 112400072777760768000
23 1175091669949317120000

[1,2,3,12,30,360,840,10080,60480,907200,3991680,
 119750400,518918400,14529715200,163459296000,
 2615348736000,22230464256000,1067062284288000,
 6758061133824000,304112751022080000,
 4257578514309120000,112400072777760768000,
 1175091669949317120000]

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Last modified August 10 23:32 EDT 2024. Contains 375059 sequences. (Running on oeis4.)