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A330506 as a simple table

n a(n)
1 1
2 2
3 7
4 24
5 129
6 840
7 5265
8 40320
9 434385
10 3900960
11 40809825
12 558835200
13 6335076825
14 91070179200
15 1641957141825
16 20922789888000
17 359796258446625
18 7663952552256000
19 122832552380162625
20 2615369658789888000
21 62315614994643635625

[1,2,7,24,129,840,5265,40320,434385,3900960,
 40809825,558835200,6335076825,91070179200,
 1641957141825,20922789888000,359796258446625,
 7663952552256000,122832552380162625,
 2615369658789888000,62315614994643635625]

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Last modified September 11 05:34 EDT 2024. Contains 375814 sequences. (Running on oeis4.)