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A197720 as a simple table

n a(n)
1 1
2 1
3 22
4 87
5 1726
6 68819
7 4003781
8 565032173
9 152764693020
10 80175405643606

[1,1,22,87,1726,68819,4003781,565032173,
 152764693020,80175405643606]

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Last modified January 27 22:53 EST 2022. Contains 350654 sequences. (Running on oeis4.)