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A051403 as a simple table

n a(n)
-1 0
0 1
1 3
2 8
3 25
4 102
5 539
6 3496
7 26613
8 231170
9 2250127
10 24227484
11 285705641
12 3660694198
13 50624828355
14 751426146512
15 11913622408669
16 200919532718826
17 3591112295892983
18 67803855263483140
19 1348467602319393297
20 28174602435230023454
21 617001101156944493611 

[0,1,3,8,25,102,539,3496,26613,231170,2250127,
 24227484,285705641,3660694198,50624828355,
 751426146512,11913622408669,200919532718826,
 3591112295892983,67803855263483140,
 1348467602319393297,28174602435230023454,
 617001101156944493611]

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Last modified June 4 02:16 EDT 2024. Contains 373089 sequences. (Running on oeis4.)