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A189581 as a simple table

n a(n)
1 1
2 1
3 1
4 4
5 13
6 26
7 48
8 95
9 205
10 456
11 974
12 2024
13 4225
14 8930
15 18977
16 40199
17 84815
18 178867
19 377753
20 798542
21 1687806
22 3565554
23 7531030
24 15908857
25 33611337
26 71013181
27 150026395
28 316943191
29 669573901
30 1414567938
31 2988489622
32 6313604894

[1,1,1,4,13,26,48,95,205,456,974,2024,4225,8930,
 18977,40199,84815,178867,377753,798542,1687806,
 3565554,7531030,15908857,33611337,71013181,
 150026395,316943191,669573901,1414567938,
 2988489622,6313604894]

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)