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A065694 as a simple table

n a(n)
0 2
1 8
2 23
3 47
4 80
5 365
6 3089
7 19916
8 96287
9 369983
10 1188008
11 3489557
12 11440865
13 49588820
14 250207799
15 1210364111
16 5215038272
17 20004134333
18 70879879793
19 248964475292
20 941859229775
21 3946659132575
22 17384730325784
23 75199501505381

[2,8,23,47,80,365,3089,19916,96287,369983,1188008,
 3489557,11440865,49588820,250207799,1210364111,
 5215038272,20004134333,70879879793,248964475292,
 941859229775,3946659132575,17384730325784,
 75199501505381]

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Last modified May 23 10:51 EDT 2022. Contains 353975 sequences. (Running on oeis4.)