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A002854 as a simple table

n a(n)
1 1
2 1
3 2
4 3
5 7
6 16
7 54
8 243
9 2038
10 33120
11 1182004
12 87723296
13 12886193064
14 3633057074584
15 1944000150734320
16 1967881448329407496
17 3768516017219786199856
18 13670271807937483065795200
19 94109042015724412679233018144
20 1232069666043220685614640133362240

[1,1,2,3,7,16,54,243,2038,33120,1182004,87723296,
 12886193064,3633057074584,1944000150734320,
 1967881448329407496,3768516017219786199856,
 13670271807937483065795200,
 94109042015724412679233018144,
 1232069666043220685614640133362240]

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Last modified April 19 21:57 EDT 2021. Contains 343117 sequences. (Running on oeis4.)