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A032213 as a simple table

n a(n)
1 1
2 1
3 1
4 4
5 8
6 38
7 206
8 1200
9 6824
10 50912
11 547552
12 4372912
13 50243280
14 557844400
15 6991479552
16 99545556480
17 1388702331776
18 20997495005568
19 347714276937216
20 5833018374594560
21 105073644198025984

[1,1,1,4,8,38,206,1200,6824,50912,547552,4372912,
 50243280,557844400,6991479552,99545556480,
 1388702331776,20997495005568,347714276937216,
 5833018374594560,105073644198025984]

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Last modified August 8 18:40 EDT 2022. Contains 356016 sequences. (Running on oeis4.)