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A157405 as a simple table

n a(n)
0 1
1 1
2 5
3 1
4 15
5 55
6 1
7 105
8 220
9 935
10 1
11 425
12 3300
13 4675
14 21505
15 1
16 3075
17 47850
18 84150
19 129030
20 623645
21 1
22 15855
23 415800
24 2323475
25 2709630
26 4365515
27 415800
28 2323475
29 2709630
30 4365515
31 21827575
32 1
33 123515
34 6394080
35 51934575

[1,1,5,1,15,55,1,105,220,935,1,425,3300,4675,
 21505,1,3075,47850,84150,129030,623645,1,15855,
 415800,2323475,2709630,4365515,415800,2323475,
 2709630,4365515,21827575,1,123515,6394080,
 51934575]

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Last modified April 23 12:44 EDT 2024. Contains 371913 sequences. (Running on oeis4.)