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A084784 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 25
5 137
6 944
7 7884
8 77514
9 877002
10 11218428
11 160010244
12 2516742498
13 43260962754
14 806650405800
15 16213824084864
16 349441656710217
17 8037981040874313
18 196539809431339642
19 5090276002949080318

[1,1,2,6,25,137,944,7884,77514,877002,11218428,
 160010244,2516742498,43260962754,806650405800,
 16213824084864,349441656710217,8037981040874313,
 196539809431339642,5090276002949080318]

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Last modified November 17 12:09 EST 2018. Contains 317276 sequences. (Running on oeis4.)