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A293717 as a simple table

n a(n)
0 1
1 1
2 5
3 31
4 241
5 1661
6 16861
7 181315
8 2091041
9 25320601
10 354057301
11 5149373351
12 78917379025
13 1281478466581
14 22335899616941
15 403305062965771
16 7612564457632321
17 150561914023428785
18 3113594618276542501
19 66512360356769464111
20 1474726318816689523121

[1,1,5,31,241,1661,16861,181315,2091041,25320601,
 354057301,5149373351,78917379025,1281478466581,
 22335899616941,403305062965771,7612564457632321,
 150561914023428785,3113594618276542501,
 66512360356769464111,1474726318816689523121]

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Last modified September 24 22:46 EDT 2021. Contains 347651 sequences. (Running on oeis4.)