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A186743 as a simple table

n a(n)
0 0
1 0
2 0
3 1
4 1
5 1
6 3
7 3
8 13
9 21
10 157
11 536
12 18942
13 389404
14 50314456
15 2942196832
16 1698517018391 

[0,0,0,1,1,1,3,3,13,21,157,536,18942,389404,
 50314456,2942196832,1698517018391]

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Last modified May 12 22:30 EDT 2024. Contains 372497 sequences. (Running on oeis4.)