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A002209 as a simple table

n a(n)
0 1
1 2
2 12
3 8
4 720
5 288
6 60480
7 17280
8 3628800
9 89600
10 95800320
11 17418240
12 2615348736000
13 402361344000
14 4483454976000
15 98402304
16 32011868528640000
17 342372925440000
18 51090942171709440000
19 5377993912811520000
20 33720021833328230400000

[1,2,12,8,720,288,60480,17280,3628800,89600,
 95800320,17418240,2615348736000,402361344000,
 4483454976000,98402304,32011868528640000,
 342372925440000,51090942171709440000,
 5377993912811520000,33720021833328230400000]

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)