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A318821 as a simple table

n a(n)
6 0
7 1
8 1
9 3
10 8
11 22
12 60
13 168
14 466
15 1306
16 3677
17 10400
18 29503
19 83969
20 239533
21 684880
22 1961986
23 5630451
24 16182950
25 46577929
26 134228796
27 387264335
28 1118459507
29 3233302665
30 9355173164
31 27089886520
32 78502923212
33 227648300409
34 660574571072
35 1917958785876
36 5571852459248

[0,1,1,3,8,22,60,168,466,1306,3677,10400,29503,
 83969,239533,684880,1961986,5630451,16182950,
 46577929,134228796,387264335,1118459507,
 3233302665,9355173164,27089886520,78502923212,
 227648300409,660574571072,1917958785876,
 5571852459248]

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Last modified September 4 10:01 EDT 2024. Contains 375681 sequences. (Running on oeis4.)