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A207344 as a simple table

n a(n)
1 18
2 324
3 858
4 5290
5 27022
6 128292
7 684324
8 3524736
9 17492664
10 91157630
11 466901309
12 2357231531
13 12176328967
14 62219037705
15 316361642076
16 1627284771068
17 8309635888371
18 42388164632017
19 217515758892581
20 1110796489660535

[18,324,858,5290,27022,128292,684324,3524736,
 17492664,91157630,466901309,2357231531,
 12176328967,62219037705,316361642076,
 1627284771068,8309635888371,42388164632017,
 217515758892581,1110796489660535]

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)