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A297860 as a simple table

n a(n)
1 0
2 1
3 2
4 5
5 10
6 25
7 54
8 125
9 282
10 641
11 1454
12 3301
13 7490
14 17001
15 38582
16 87565
17 198730
18 451025
19 1023614
20 2323125
21 5272402
22 11965881
23 27156934
24 61633501
25 139879130
26 317460001
27 720485262
28 1635163525
29 3711054050
30 8422351625
31 19114786774

[0,1,2,5,10,25,54,125,282,641,1454,3301,7490,
 17001,38582,87565,198730,451025,1023614,2323125,
 5272402,11965881,27156934,61633501,139879130,
 317460001,720485262,1635163525,3711054050,
 8422351625,19114786774]

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Last modified August 5 21:50 EDT 2020. Contains 336213 sequences. (Running on oeis4.)