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A002538 as a simple table

n a(n)
1 1
2 8
3 58
4 444
5 3708
6 33984
7 341136
8 3733920
9 44339040
10 568356480
11 7827719040
12 115336085760
13 1810992556800
14 30196376985600
15 532953524275200
16 9927928075161600
17 194677319705702400
18 4008789120817152000
19 86495828444928000000
20 1951566265951948800000
21 45958933902500720640000

[1,8,58,444,3708,33984,341136,3733920,44339040,
 568356480,7827719040,115336085760,1810992556800,
 30196376985600,532953524275200,9927928075161600,
 194677319705702400,4008789120817152000,
 86495828444928000000,1951566265951948800000,
 45958933902500720640000]

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Last modified April 24 11:49 EDT 2024. Contains 371936 sequences. (Running on oeis4.)