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A158301 as a simple table

n a(n)
0 1
1 3
2 36
3 27
4 6480
5 972
6 326592
7 34992
8 8398080
9 1259712
10 665127936
11 45349632
12 990435962880
13 1632586752
14 78364164096
15 58773123072
16 239794342133760
17 2115832430592
18 13507474236899328
19 76169967501312
20 201088714203463680

[1,3,36,27,6480,972,326592,34992,8398080,1259712,
 665127936,45349632,990435962880,1632586752,
 78364164096,58773123072,239794342133760,
 2115832430592,13507474236899328,76169967501312,
 201088714203463680]

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Last modified December 8 04:55 EST 2023. Contains 367662 sequences. (Running on oeis4.)