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A203715 as a simple table

n a(n)
1 1
2 3
3 6
4 34
5 120
6 1096
7 5040
8 56848
9 362880
10 5451136
11 39916800
12 688876288
13 6227020800
14 130789805056
15 1307674368000
16 29497569445888
17 355687428096000
18 9746045395173376
19 121645100408832000
20 3451902721622867968
21 51090942171709440000
22 1686006043164464644096

[1,3,6,34,120,1096,5040,56848,362880,5451136,
 39916800,688876288,6227020800,130789805056,
 1307674368000,29497569445888,355687428096000,
 9746045395173376,121645100408832000,
 3451902721622867968,51090942171709440000,
 1686006043164464644096]

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Last modified October 1 02:38 EDT 2022. Contains 357134 sequences. (Running on oeis4.)