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A319381 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 2
6 4
7 6
8 9
9 11
10 20
11 28
12 40
13 58
14 82
15 110
16 159
17 217
18 305
19 420
20 570
21 767
22 1042

[1,1,1,2,2,4,6,9,11,20,28,40,58,82,110,159,217,
 305,420,570,767,1042]

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Last modified May 2 03:56 EDT 2024. Contains 372178 sequences. (Running on oeis4.)