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A221102 as a simple table

n a(n)
0 1
1 1
2 2
3 15
4 200
5 3760
6 91224
7 2709812
8 95224912
9 3863456064
10 177719432160
11 9139465292232
12 519589955270880
13 32357519212143216
14 2190546095240274576
15 160174321738326207720
16 12580536897832727328384
17 1056318093163793284320000
18 94419894211308238918810752

[1,1,2,15,200,3760,91224,2709812,95224912,
 3863456064,177719432160,9139465292232,
 519589955270880,32357519212143216,
 2190546095240274576,160174321738326207720,
 12580536897832727328384,1056318093163793284320000,
 94419894211308238918810752]

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Last modified April 18 21:51 EDT 2024. Contains 371781 sequences. (Running on oeis4.)