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A146613 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 7
7 21
8 49
9 235
10 1289
11 9339
12 82787
13 865777
14 11018603
15 179905507
16 3665014053
17 93285011401
18 2967105675995
19 116229643915377
20 5631229452463433

[1,1,1,1,1,7,21,49,235,1289,9339,82787,865777,
 11018603,179905507,3665014053,93285011401,
 2967105675995,116229643915377,5631229452463433]

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Last modified August 16 15:30 EDT 2022. Contains 356168 sequences. (Running on oeis4.)