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A174315 as a simple table

n a(n)
2 1
3 7
4 97
5 2221
6 75721
7 3591211
8 225827617
9 18168156217
10 1819029079441
11 221716249326991
12 32313176619313921
13 5547478498197397477
14 1107802527495396486937
15 254557467773494382397811

[1,7,97,2221,75721,3591211,225827617,18168156217,
 1819029079441,221716249326991,32313176619313921,
 5547478498197397477,1107802527495396486937,
 254557467773494382397811]

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Last modified May 17 12:55 EDT 2021. Contains 343971 sequences. (Running on oeis4.)