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A078700 as a simple table

n a(n)
1 1
2 2
3 6
4 30
5 192
6 1560
7 15120
8 171360
9 2217600
10 32296320
11 522547200
12 9300614400
13 180583603200
14 3798482688000
15 86044973414400
16 2088355965696000
17 54064489070592000
18 1487129136869376000
19 43312058119249920000

[1,2,6,30,192,1560,15120,171360,2217600,32296320,
 522547200,9300614400,180583603200,3798482688000,
 86044973414400,2088355965696000,54064489070592000,
 1487129136869376000,43312058119249920000]

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Last modified April 24 06:39 EDT 2024. Contains 371920 sequences. (Running on oeis4.)