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A147137 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 3
8 13
9 33
10 61
11 123
12 351
13 1083
14 3363
15 12745
16 54981
17 257267
18 1349181
19 7264663
20 42437683
21 269731743 

[1,1,1,1,1,1,3,13,33,61,123,351,1083,3363,12745,
 54981,257267,1349181,7264663,42437683,269731743]

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Last modified July 16 18:33 EDT 2024. Contains 374358 sequences. (Running on oeis4.)