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A318819 as a simple table

n a(n)
4 0
5 1
6 1
7 3
8 8
9 23
10 61
11 167
12 461
13 1288
14 3593
15 10084
16 28381
17 80218
18 227156
19 644864
20 1834290
21 5227297
22 14919502
23 42644478
24 122047963
25 349716506
26 1003120145
27 2880163515
28 8276937322
29 23805829084
30 68521035251
31 197365718477
32 568859465838
33 1640609651599
34 4734261078026

[0,1,1,3,8,23,61,167,461,1288,3593,10084,28381,
 80218,227156,644864,1834290,5227297,14919502,
 42644478,122047963,349716506,1003120145,
 2880163515,8276937322,23805829084,68521035251,
 197365718477,568859465838,1640609651599,
 4734261078026]

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Last modified December 6 18:41 EST 2023. Contains 367614 sequences. (Running on oeis4.)