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A254232 as a simple table

n a(n)
2 2
3 6
4 12
5 60
6 300
7 2100
8 21000
9 252000
10 4284000
11 94248000
12 2733192000
13 106594488000
14 5436318888000
15 369669684384000
16 33270271594560000
17 3959162319752640000
18 625547646520917120000
19 130739458122871678080000
20 36214829900035454828160000

[2,6,12,60,300,2100,21000,252000,4284000,94248000,
 2733192000,106594488000,5436318888000,
 369669684384000,33270271594560000,
 3959162319752640000,625547646520917120000,
 130739458122871678080000,
 36214829900035454828160000]

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Last modified June 10 05:51 EDT 2024. Contains 373253 sequences. (Running on oeis4.)