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A331636 as a simple table

n a(n)
1 1
2 5
3 17
4 109
5 557
6 5785
7 47357
8 596365
9 7151841
10 106763725
11 1622633597
12 28757539337
13 526858352477
14 10758375762109
15 230342261913169
16 5344946955452877
17 130370767029201437
18 3394996816992588345
19 92801587319328673277
20 2681375183085608280093

[1,5,17,109,557,5785,47357,596365,7151841,
 106763725,1622633597,28757539337,526858352477,
 10758375762109,230342261913169,5344946955452877,
 130370767029201437,3394996816992588345,
 92801587319328673277,2681375183085608280093]

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Last modified July 4 23:17 EDT 2022. Contains 355086 sequences. (Running on oeis4.)