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A263659 as a simple table

n a(n)
0 0
1 2
2 2
3 2
4 3
5 4
6 5
7 6
8 8
9 10
10 15
11 20
12 31
13 42
14 64
15 94
16 143
17 212
18 329
19 494
20 766
21 1170
22 1811
23 2788
24 4341
25 6714
26 10462
27 16274
28 25415
29 39652
30 62075
31 97110
32 152288
33 238838
34 375167
35 589528
36 927555
37 1459962
38 2300348
39 3626242
40 5721045

[0,2,2,2,3,4,5,6,8,10,15,20,31,42,64,94,143,212,
 329,494,766,1170,1811,2788,4341,6714,10462,16274,
 25415,39652,62075,97110,152288,238838,375167,
 589528,927555,1459962,2300348,3626242,5721045]

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Last modified May 11 03:12 EDT 2024. Contains 372388 sequences. (Running on oeis4.)