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A147431 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 3
7 9
8 19
9 43
10 151
11 665
12 3477
13 19383
14 122069
15 922803
16 8541115
17 92856889
18 1171563865
19 17291558591
20 299747161375
21 6126738372415
22 147219368035745
23 4156365837186519

[1,1,1,1,1,3,9,19,43,151,665,3477,19383,122069,
 922803,8541115,92856889,1171563865,17291558591,
 299747161375,6126738372415,147219368035745,
 4156365837186519]

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)