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A008338 as a simple table

n a(n)
1 1
2 1
3 2
4 12
5 288
6 34560
7 48
8 241920
9 6
10 2177280
11 7900913664000
12 315379190543155200000
13 658409472000
14 4099929477061017600000
15 47029248000
16 61498942155915264000000
17 2939328000
18 1045482016650559488000000
19 163296000

[1,1,2,12,288,34560,48,241920,6,2177280,
 7900913664000,315379190543155200000,658409472000,
 4099929477061017600000,47029248000,
 61498942155915264000000,2939328000,
 1045482016650559488000000,163296000]

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Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)