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A316108 as a simple table

n a(n)
0 0
1 1
2 1
3 1
4 9
5 45
6 237
7 1335
8 7767
9 45867
10 275865
11 1681776
12 10373614
13 64620952
14 405996375
15 2569673028
16 16369919346
17 104880810464
18 675383823982
19 4368948815362
20 28377658731830
21 185003199176340
22 1210146671320603
23 7940083938945628
24 52243075940256372

[0,1,1,1,9,45,237,1335,7767,45867,275865,1681776,
 10373614,64620952,405996375,2569673028,
 16369919346,104880810464,675383823982,
 4368948815362,28377658731830,185003199176340,
 1210146671320603,7940083938945628,
 52243075940256372]

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Last modified June 7 18:09 EDT 2024. Contains 373206 sequences. (Running on oeis4.)