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A143373 as a simple table

n a(n)
1 1
2 1
3 1
4 3
5 5
6 9
7 17
8 30
9 55
10 100
11 181
12 330
13 599
14 1088
15 1978
16 3593
17 6529
18 11864
19 21556
20 39169
21 71171
22 129319
23 234978
24 426961
25 775801
26 1409655
27 2561384
28 4654113
29 8456664
30 15366012
31 27920509

[1,1,1,3,5,9,17,30,55,100,181,330,599,1088,1978,
 3593,6529,11864,21556,39169,71171,129319,234978,
 426961,775801,1409655,2561384,4654113,8456664,
 15366012,27920509]

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Last modified April 5 10:20 EDT 2020. Contains 333239 sequences. (Running on oeis4.)