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A073090 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 2
5 2
6 8
7 8
8 22
9 104
10 1128
11 1128
12 14520
13 14520
14 229734
15 3217088

[1,1,1,1,2,2,8,8,22,104,1128,1128,14520,14520,
 229734,3217088]

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Last modified January 29 14:44 EST 2023. Contains 359923 sequences. (Running on oeis4.)