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A146861 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 5
8 19
9 37
10 77
11 131
12 515
13 1575
14 6459
15 26455
16 139873
17 647697
18 4036849
19 21133021
20 162531941
21 1088442077

[1,1,1,1,1,1,5,19,37,77,131,515,1575,6459,26455,
 139873,647697,4036849,21133021,162531941,
 1088442077]

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Last modified September 27 02:41 EDT 2022. Contains 357051 sequences. (Running on oeis4.)