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A121120 as a simple table

n a(n)
1 1
2 1
3 6
4 32
5 245
6 1926
7 16119
8 137475
9 1194854
10 10517058
11 93593287
12 840500847
13 7607643154
14 69331324533
15 635651786601
16 5858956542866
17 54260363841729
18 504655054951887
19 4711672806323948
20 44143665936691049
21 414896145593829741
22 3910842418588639201

[1,1,6,32,245,1926,16119,137475,1194854,10517058,
 93593287,840500847,7607643154,69331324533,
 635651786601,5858956542866,54260363841729,
 504655054951887,4711672806323948,
 44143665936691049,414896145593829741,
 3910842418588639201]

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Last modified August 19 05:14 EDT 2024. Contains 375284 sequences. (Running on oeis4.)