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A004149 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 2
5 4
6 8
7 16
8 33
9 69
10 146
11 312
12 673
13 1463
14 3202
15 7050
16 15605
17 34705
18 77511
19 173779
20 390966
21 882376
22 1997211
23 4532593
24 10311720
25 23512376
26 53724350
27 122995968
28 282096693
29 648097855
30 1491322824
31 3436755328
32 7931085771

[1,1,1,1,2,4,8,16,33,69,146,312,673,1463,3202,
 7050,15605,34705,77511,173779,390966,882376,
 1997211,4532593,10311720,23512376,53724350,
 122995968,282096693,648097855,1491322824,
 3436755328,7931085771]

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Last modified October 17 03:15 EDT 2018. Contains 316275 sequences. (Running on oeis4.)