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A019156 as a simple table

n a(n)
3 0
4 0
5 5
6 1
7 0
8 35
9 38
10 49
11 344
12 667
13 1066
14 3893
15 10039
16 20890
17 58933
18 162476
19 391216
20 1023256
21 2780644
22 7152876
23 18691707
24 50267352
25 133025820
26 351844737
27 943849981
28 2526954048
29 6755028017
30 18170687425
31 48965960569

[0,0,5,1,0,35,38,49,344,667,1066,3893,10039,20890,
 58933,162476,391216,1023256,2780644,7152876,
 18691707,50267352,133025820,351844737,943849981,
 2526954048,6755028017,18170687425,48965960569]

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Last modified August 14 18:13 EDT 2022. Contains 356122 sequences. (Running on oeis4.)