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A120331 as a simple table

n a(n)
0 1
1 1
2 6
3 72
4 1776
5 89280
6 9065472
7 1850148864
8 757046525952
9 620298979246080
10 1017126921430892544
11 3336658943759213395968
12 21894988380633154342354944
13 287369531352172835754234347520
14 7543680108676972971562235527692288

[1,1,6,72,1776,89280,9065472,1850148864,
 757046525952,620298979246080,1017126921430892544,
 3336658943759213395968,21894988380633154342354944,
 287369531352172835754234347520,
 7543680108676972971562235527692288]

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Last modified August 24 16:16 EDT 2019. Contains 326295 sequences. (Running on oeis4.)