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A146720 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 5
8 17
9 43
10 65
11 175
12 507
13 1901
14 7015
15 35249
16 143079
17 849399
18 4342589
19 31597665
20 199056275
21 1767268871

[1,1,1,1,1,1,5,17,43,65,175,507,1901,7015,35249,
 143079,849399,4342589,31597665,199056275,
 1767268871]

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)