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A068768 as a simple table

n a(n)
0 1
1 1
2 12
3 150
4 1944
5 25992
6 356832
7 5008824
8 71629920
9 1040509152
10 15315578496
11 227981324736
12 3426473187072
13 51929043390720
14 792725911280640
15 12178706839758720
16 188158789025809920
17 2921622674591946240

[1,1,12,150,1944,25992,356832,5008824,71629920,
 1040509152,15315578496,227981324736,3426473187072,
 51929043390720,792725911280640,12178706839758720,
 188158789025809920,2921622674591946240]

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Last modified June 12 15:57 EDT 2024. Contains 373333 sequences. (Running on oeis4.)