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A152665 as a simple table

n a(n)
1 0
2 1
3 2
4 16
5 60
6 540
7 3024
8 32256
9 241920
10 3024000
11 28512000
12 410572800
13 4670265600
14 76281004800
15 1017080064000
16 18598035456000
17 284549942476800
18 5762136335155200
19 99527809425408000
20 2211729098342400000

[0,1,2,16,60,540,3024,32256,241920,3024000,
 28512000,410572800,4670265600,76281004800,
 1017080064000,18598035456000,284549942476800,
 5762136335155200,99527809425408000,
 2211729098342400000]

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Last modified March 28 13:19 EDT 2024. Contains 371254 sequences. (Running on oeis4.)