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A089372 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 5
5 12
6 29
7 72
8 183
9 473
10 1239
11 3282
12 8777
13 23665
14 64261
15 175584
16 482395
17 1331795
18 3692891
19 10280190
20 28719659
21 80493514
22 226268539
23 637767720
24 1802113489
25 5103874135
26 14485789561
27 41194844114
28 117366166381

[1,1,1,2,5,12,29,72,183,473,1239,3282,8777,23665,
 64261,175584,482395,1331795,3692891,10280190,
 28719659,80493514,226268539,637767720,1802113489,
 5103874135,14485789561,41194844114,117366166381]

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Last modified May 14 12:38 EDT 2024. Contains 372533 sequences. (Running on oeis4.)