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A146709 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 7
7 21
8 51
9 237
10 1129
11 8811
12 85099
13 859569
14 10699439
15 171553261
16 3455226259
17 90780787231
18 2937046608631
19 113622292506777
20 5452353589454277
21 328302441188610241

[1,1,1,1,1,7,21,51,237,1129,8811,85099,859569,
 10699439,171553261,3455226259,90780787231,
 2937046608631,113622292506777,5452353589454277,
 328302441188610241]

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Last modified October 22 05:36 EDT 2021. Contains 348160 sequences. (Running on oeis4.)