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A289996 as a simple table

n a(n)
0 1
1 0
2 1
3 6
4 39
5 295
6 2601
7 26384
8 303669
9 3918008
10 56085221
11 882877516
12 15166881630
13 282452177349
14 5669156051312
15 122010117338339
16 2802966544097522
17 68461924440931437
18 1771518733188575012
19 48409312348609160524
20 1393032780114633730273
21 42104441726010747569549
22 1333580366505429790830837

[1,0,1,6,39,295,2601,26384,303669,3918008,
 56085221,882877516,15166881630,282452177349,
 5669156051312,122010117338339,2802966544097522,
 68461924440931437,1771518733188575012,
 48409312348609160524,1393032780114633730273,
 42104441726010747569549,1333580366505429790830837]

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Last modified March 29 09:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)