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A184718 as a simple table

n a(n)
1 1
2 1
3 2
4 2
5 15
6 76
7 560
8 3604
9 24327
10 152952
11 925232
12 5495907
13 31966719
14 182331659
15 1021217701
16 5622236708
17 30456148470
18 162478306805
19 854327762047
20 4430787907798
21 22680031606293
22 114649453836280
23 572666511225162

[1,1,2,2,15,76,560,3604,24327,152952,925232,
 5495907,31966719,182331659,1021217701,5622236708,
 30456148470,162478306805,854327762047,
 4430787907798,22680031606293,114649453836280,
 572666511225162]

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Last modified January 18 02:24 EST 2022. Contains 350410 sequences. (Running on oeis4.)