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A049931 as a simple table

n a(n)
1 1
2 3
3 4
4 5
5 8
6 18
7 34
8 55
9 73
10 198
11 394
12 775
13 1513
14 2883
15 5189
16 8270
17 11153
18 30573
19 61144
20 122275
21 244513
22 488883
23 977189
24 1952270
25 3899153
26 7776003
27 15460304
28 30554000
29 59644613
30 113465493
31 204152989
32 325394485
33 438859978

[1,3,4,5,8,18,34,55,73,198,394,775,1513,2883,5189,
 8270,11153,30573,61144,122275,244513,488883,
 977189,1952270,3899153,7776003,15460304,30554000,
 59644613,113465493,204152989,325394485,438859978]

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Last modified May 24 00:15 EDT 2022. Contains 353993 sequences. (Running on oeis4.)