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A000286 as a simple table

n a(n)
0 0
1 1
2 1
3 4
4 5
5 11
6 20
7 36
8 65
9 119
10 218
11 412
12 770
13 1466
14 2784
15 5322
16 10226
17 19691
18 38048
19 73665
20 142927
21 277822
22 540851
23 1054502
24 2058507
25 4023164
26 7871226
27 15414517
28 30213010
29 59266164
30 116343183
31 228545303
32 449240025
33 883569304
34 1738768584
35 3423466797
36 6743729031

[0,1,1,4,5,11,20,36,65,119,218,412,770,1466,2784,
 5322,10226,19691,38048,73665,142927,277822,540851,
 1054502,2058507,4023164,7871226,15414517,30213010,
 59266164,116343183,228545303,449240025,883569304,
 1738768584,3423466797,6743729031]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)