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A330511 as a simple table

n a(n)
1 1
2 2
3 4
4 24
5 144
6 480
7 4320
8 40320
9 282240
10 4354560
11 36288000
12 319334400
13 6706022400
14 74724249600
15 1046139494400
16 20922789888000
17 376610217984000
18 4979623993344000
19 115242726703104000
20 2919482409811968000
21 29194824098119680000

[1,2,4,24,144,480,4320,40320,282240,4354560,
 36288000,319334400,6706022400,74724249600,
 1046139494400,20922789888000,376610217984000,
 4979623993344000,115242726703104000,
 2919482409811968000,29194824098119680000]

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Last modified June 16 08:45 EDT 2024. Contains 373424 sequences. (Running on oeis4.)