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A293507 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 1
5 121
6 721
7 2521
8 6721
9 378001
10 5473441
11 39972241
12 199679041
13 7005552841
14 176899522801
15 2186722497961
16 17454339826561
17 459473703430561
18 16503993702423361
19 306140370496394401
20 3555223271216311681
21 80917223353652470681
22 3568770455830785208081

[1,1,1,1,1,121,721,2521,6721,378001,5473441,
 39972241,199679041,7005552841,176899522801,
 2186722497961,17454339826561,459473703430561,
 16503993702423361,306140370496394401,
 3555223271216311681,80917223353652470681,
 3568770455830785208081]

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Last modified April 20 00:58 EDT 2024. Contains 371798 sequences. (Running on oeis4.)