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A143646 as a simple table

n a(n)
0 0
1 1
2 4
3 18
4 83
5 387
6 1815
7 8541
8 40276
9 190182
10 898844
11 4250780
12 20111394
13 95181166
14 450565602
15 2133227418
16 10101126723
17 47834649675
18 226540406571
19 1072931019393
20 5081776592061
21 24069823974879
22 114009427284309

[0,1,4,18,83,387,1815,8541,40276,190182,898844,
 4250780,20111394,95181166,450565602,2133227418,
 10101126723,47834649675,226540406571,
 1072931019393,5081776592061,24069823974879,
 114009427284309]

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Last modified April 19 11:14 EDT 2024. Contains 371791 sequences. (Running on oeis4.)