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A178061 as a simple table

n a(n)
0 0
1 0
2 1
3 3
4 9
5 25
6 120
7 546
8 4438
9 28134
10 308115
11 2440405
12 33237831
13 314699463
14 5119097074
15 56345113020
16 1065268609980
17 13359512435356
18 287786703606453
19 4049825314169079
20 97903924694681365
21 1527478596708475845
22 40946200336523631996
23 701409698806896677158

[0,0,1,3,9,25,120,546,4438,28134,308115,2440405,
 33237831,314699463,5119097074,56345113020,
 1065268609980,13359512435356,287786703606453,
 4049825314169079,97903924694681365,
 1527478596708475845,40946200336523631996,
 701409698806896677158]

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Last modified March 28 14:21 EDT 2024. Contains 371254 sequences. (Running on oeis4.)