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A089473 as a simple table

n a(n)
0 1
1 2
2 4
3 8
4 16
5 20
6 39
7 62
8 116
9 152
10 286
11 396
12 748
13 1024
14 1893
15 2512
16 4485
17 5638
18 9529
19 10878
20 16993
21 17110
22 23952
23 20224
24 24047
25 15578
26 14560
27 6274
28 3910
29 760
30 221
31 2

[1,2,4,8,16,20,39,62,116,152,286,396,748,1024,
 1893,2512,4485,5638,9529,10878,16993,17110,23952,
 20224,24047,15578,14560,6274,3910,760,221,2]

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Last modified June 19 18:16 EDT 2013. Contains 226415 sequences.