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A216396 as a simple table

n a(n)
1 0
2 0
3 1
4 0
5 1
6 0
7 0
8 0
9 2
10 1
11 1
12 2
13 5
14 4
15 15
16 15
17 16
18 35
19 91
20 90
21 158
22 345
23 586
24 694
25 1549
26 2700
27 3363

[0,0,1,0,1,0,0,0,2,1,1,2,5,4,15,15,16,35,91,90,
 158,345,586,694,1549,2700,3363]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)