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A266526 as a simple table

n a(n)
1 1
2 4
3 42
4 752
5 19360
6 654912
7 27546736
8 1388207872
9 81621893376
10 5488951731200
11 415721105434624
12 35026876903256064
13 3250356630453317632
14 329437813126362185728
15 36214170617862339840000
16 4291812357982293898231808
17 545518054282041342531076096
18 74032137722410904128877494272
19 10684317262536125210489796296704
20 1634019721630446295055397683200000

[1,4,42,752,19360,654912,27546736,1388207872,
 81621893376,5488951731200,415721105434624,
 35026876903256064,3250356630453317632,
 329437813126362185728,36214170617862339840000,
 4291812357982293898231808,
 545518054282041342531076096,
 74032137722410904128877494272,
 10684317262536125210489796296704,
 1634019721630446295055397683200000]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)