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A100646 as a simple table

n a(n)
2 6
3 8
4 15
5 144
6 280
7 640
8 14175
9 2240
10 199584
11 87091200
12 875875
13 22353408000
14 5003856000
15 229605376
16 10854718875
17 941525544960000
18 1013940928000
19 3064383995904000
20 82324272054024
21 2996771880960000
22 255484332230400000
23 809280523999877529600000
24 5699209469078125

[6,8,15,144,280,640,14175,2240,199584,87091200,
 875875,22353408000,5003856000,229605376,
 10854718875,941525544960000,1013940928000,
 3064383995904000,82324272054024,2996771880960000,
 255484332230400000,809280523999877529600000,
 5699209469078125]

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Last modified April 18 20:18 EDT 2024. Contains 371781 sequences. (Running on oeis4.)