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A203416 as a simple table

n a(n)
1 3
2 10
3 56
4 120
5 432
6 12672
7 249600
8 873180
9 4838400
10 296110080
11 10786406400
12 49621572000
13 355053404160
14 34613526528000
15 211189410432000
16 1910897049600000
17 21311651380219200
18 274774815041126400
19 62908970812047360000

[3,10,56,120,432,12672,249600,873180,4838400,
 296110080,10786406400,49621572000,355053404160,
 34613526528000,211189410432000,1910897049600000,
 21311651380219200,274774815041126400,
 62908970812047360000]

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Last modified April 19 03:57 EDT 2024. Contains 371782 sequences. (Running on oeis4.)