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A146009 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 3
6 9
7 22
8 75
9 380
10 2417
11 17011
12 150387
13 1725197
14 24767029
15 439881987
16 9753623996
17 269467512241
18 9272282447537
19 399403152426578
20 21537582386961680
21 1447800106086744192
22 121198502960515093107

[1,1,1,1,3,9,22,75,380,2417,17011,150387,1725197,
 24767029,439881987,9753623996,269467512241,
 9272282447537,399403152426578,21537582386961680,
 1447800106086744192,121198502960515093107]

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Last modified December 7 16:08 EST 2023. Contains 367658 sequences. (Running on oeis4.)