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A321588 as a simple table

n a(n)
0 1
1 1
2 1
3 9
4 29
5 181
6 1285
7 10635
8 102355
9 1118021
10 13637175
11 184238115
12 2727293893
13 43920009785
14 764389610843
15 14297306352937
16 286014489487815
17 6093615729757841
18 137750602009548533
19 3293082026520294529
20 83006675263513350581
21 2200216851785981586729
22 61180266502369886181253

[1,1,1,9,29,181,1285,10635,102355,1118021,
 13637175,184238115,2727293893,43920009785,
 764389610843,14297306352937,286014489487815,
 6093615729757841,137750602009548533,
 3293082026520294529,83006675263513350581,
 2200216851785981586729,61180266502369886181253]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)