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A200028 as a simple table

n a(n)
0 1
1 1
2 5
3 23
4 123
5 714
6 4371
7 27789
8 181703
9 1214166
10 8254642
11 56915989
12 397055129
13 2797402939
14 19875881883
15 142255845279
16 1024672816559
17 7422364394376
18 54034027247172
19 395121014784661
20 2900916414217452
21 21375452831552800
22 158025136138734047
23 1171770189246765570

[1,1,5,23,123,714,4371,27789,181703,1214166,
 8254642,56915989,397055129,2797402939,19875881883,
 142255845279,1024672816559,7422364394376,
 54034027247172,395121014784661,2900916414217452,
 21375452831552800,158025136138734047,
 1171770189246765570]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)