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A195338 as a simple table

n a(n)
0 1
1 2
2 6
3 12
4 180
5 360
6 7560
7 15120
8 226800
9 453600
10 14968800
11 29937600
12 40864824000
13 81729648000 

[1,2,6,12,180,360,7560,15120,226800,453600,
 14968800,29937600,40864824000,81729648000]

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Last modified July 19 01:31 EDT 2024. Contains 374388 sequences. (Running on oeis4.)