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A165903 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 13
5 217
6 16693
7 21717363
8 2175145909081
9 283430597537694797281
10 3699017428454717709381715649628841
11 6290488320295607125006566146327310005599469877825552723 

[1,1,1,3,13,217,16693,21717363,2175145909081,
 283430597537694797281,
 3699017428454717709381715649628841,
 62904883202956071250065661463273100055994698778255\
 52723]

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Last modified June 6 14:36 EDT 2024. Contains 373131 sequences. (Running on oeis4.)