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A120916 as a simple table

n a(n)
0 1
1 2
2 8
3 42
4 244
5 1504
6 9656
7 63856
8 431872
9 2972778
10 20756036
11 146627648
12 1046060836
13 7525452296
14 54530660832
15 397628393728
16 2915496099136
17 21481907631872
18 158975372309176
19 1181109256858096
20 8806197969093184

[1,2,8,42,244,1504,9656,63856,431872,2972778,
 20756036,146627648,1046060836,7525452296,
 54530660832,397628393728,2915496099136,
 21481907631872,158975372309176,1181109256858096,
 8806197969093184]

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Last modified September 20 11:47 EDT 2021. Contains 347584 sequences. (Running on oeis4.)