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A303819 as a simple table

n a(n)
0 1
1 2
2 4
3 12
4 16
5 48
6 144
7 720
8 1296
9 6480
10 32400
11 184320
12 331776
13 1658880
14 8294400
15 58060800
16 65536
17 196608
18 589824
19 2949120
20 5308416
21 26542080
22 132710400
23 928972800
24 3317760000
25 23224320000
26 162570240000
27 1788272640000
28 7965941760000
29 87625359360000

[1,2,4,12,16,48,144,720,1296,6480,32400,184320,
 331776,1658880,8294400,58060800,65536,196608,
 589824,2949120,5308416,26542080,132710400,
 928972800,3317760000,23224320000,162570240000,
 1788272640000,7965941760000,87625359360000]

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Last modified April 25 05:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)