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A135686 as a simple table

n a(n)
1 1
2 1
3 3
4 6
5 21
6 69
7 342
8 1791
9 13419
10 111924
11 1306215
12 17423271
13 321771366
14 6890344533
15 203170877793
16 7003940931864
17 331467832767285
18 18429651200703861
19 1404296660000722446
20 126080887032762342111
21 15497512127400670236027
22 2248516102364654511363948

[1,1,3,6,21,69,342,1791,13419,111924,1306215,
 17423271,321771366,6890344533,203170877793,
 7003940931864,331467832767285,18429651200703861,
 1404296660000722446,126080887032762342111,
 15497512127400670236027,2248516102364654511363948]

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Last modified May 4 13:55 EDT 2024. Contains 372243 sequences. (Running on oeis4.)