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A235385 as a simple table

n a(n)
0 1
1 1
2 1
3 4
4 13
5 75
6 415
7 3160
8 24545
9 233509
10 2323165
11 26599780
12 321545365
13 4312503655
14 61219938915
15 942271981240
16 15340303899265
17 266671144108265
18 4892612440317145
19 94840103781865060
20 1934826541931748925
21 41387703314570495875
22 928953515444722956775
23 21738929496091877729400

[1,1,1,4,13,75,415,3160,24545,233509,2323165,
 26599780,321545365,4312503655,61219938915,
 942271981240,15340303899265,266671144108265,
 4892612440317145,94840103781865060,
 1934826541931748925,41387703314570495875,
 928953515444722956775,21738929496091877729400]

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Last modified June 5 06:41 EDT 2020. Contains 334828 sequences. (Running on oeis4.)