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A180623 as a simple table

n a(n)
1 1
2 1
3 1
4 4
5 30
6 320
7 5400
8 119040
9 3432240
10 125927424
11 5594520960
12 302070988800
13 19179742982400
14 1423835230371840
15 121909715166919680
16 11901225092146790400
17 1316846634449778432000
18 163453208505912970444800

[1,1,1,4,30,320,5400,119040,3432240,125927424,
 5594520960,302070988800,19179742982400,
 1423835230371840,121909715166919680,
 11901225092146790400,1316846634449778432000,
 163453208505912970444800]

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Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)