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A109922 as a simple table

n a(n)
1 1
2 0
3 1
4 1
5 4
6 2
7 15
8 23
9 56
10 45
11 420
12 355
13 3960
14 3432
15 3003
16 5299
17 80080
18 71650
19 1225224
20 1108536
21 1007760
22 920128
23 19399380
24 17847429
25 82372752
26 76271066
27 212469400
28 197816337
29 5354228880
30 5008794758
31 145568097675
32 273491577450

[1,0,1,1,4,2,15,23,56,45,420,355,3960,3432,3003,
 5299,80080,71650,1225224,1108536,1007760,920128,
 19399380,17847429,82372752,76271066,212469400,
 197816337,5354228880,5008794758,145568097675,
 273491577450]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)