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A128079 as a simple table

n a(n)
0 1
1 3
2 13
3 69
4 411
5 2633
6 17739
7 124029
8 892327
9 6567285
10 49235715
11 374841195
12 2890994445
13 22545855855
14 177524073021
15 1409591810133
16 11275693221519
17 90792020672429
18 735367765159347
19 5987665336600683
20 48987680485918149

[1,3,13,69,411,2633,17739,124029,892327,6567285,
 49235715,374841195,2890994445,22545855855,
 177524073021,1409591810133,11275693221519,
 90792020672429,735367765159347,5987665336600683,
 48987680485918149]

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Last modified May 19 22:56 EDT 2019. Contains 323411 sequences. (Running on oeis4.)