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A019062 as a simple table

n a(n)
2 4
3 4
4 16
5 160
6 852
7 4732
8 30184
9 189504
10 1205100
11 7852660
12 51742748
13 345148988
14 2326869772
15 15824127132
16 108475211920 

[4,4,16,160,852,4732,30184,189504,1205100,7852660,
 51742748,345148988,2326869772,15824127132,
 108475211920]

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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)