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A012773 as a simple table

n a(n)
0 1
1 1
2 1
3 6
4 21
5 100
6 645
7 4256
8 34153
9 302352
10 2966505
11 32245664
12 380114493
13 4879093440
14 67244074989
15 996485811712
16 15717842398417
17 264232448010496
18 4694489063253585
19 88283645811756544
20 1744673430747688805

[1,1,1,6,21,100,645,4256,34153,302352,2966505,
 32245664,380114493,4879093440,67244074989,
 996485811712,15717842398417,264232448010496,
 4694489063253585,88283645811756544,
 1744673430747688805]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)