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A024397 as a simple table

n a(n)
1 2
2 6
3 146
4 1164
5 32108
6 432720
7 14141360
8 271332960
9 10373558240
10 259311694080
11 11400458720000
12 351858201408000
13 17517836995904000
14 644027147554560000
15 35846613866733824000
16 1530195810548224512000
17 94207122098479233536000
18 4580941398125400354816000 

[2,6,146,1164,32108,432720,14141360,271332960,
 10373558240,259311694080,11400458720000,
 351858201408000,17517836995904000,
 644027147554560000,35846613866733824000,
 1530195810548224512000,94207122098479233536000,
 4580941398125400354816000]

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Last modified May 14 09:19 EDT 2024. Contains 372532 sequences. (Running on oeis4.)