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A151328 as a simple table

n a(n)
0 1
1 3
2 16
3 84
4 484
5 2843
6 17193
7 105553
8 657177
9 4133074
10 26217040
11 167455754
12 1075896508
13 6947158172
14 45052303360
15 293263303568
16 1915285138362
17 12545294612032
18 82387919461119
19 542332725044387
20 3577577193573774
21 23645483214136620
22 156556003183195069
23 1038219939150227788
24 6895261278418168211

[1,3,16,84,484,2843,17193,105553,657177,4133074,
 26217040,167455754,1075896508,6947158172,
 45052303360,293263303568,1915285138362,
 12545294612032,82387919461119,542332725044387,
 3577577193573774,23645483214136620,
 156556003183195069,1038219939150227788,
 6895261278418168211]

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Last modified March 5 15:57 EST 2021. Contains 341825 sequences. (Running on oeis4.)