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A171872 as a simple table

n a(n)
0 1
1 0
2 1
3 0
4 1
5 1
6 0
7 2
8 3
9 3
10 1
11 1
12 0
13 3
14 17
15 36
16 60
17 56
18 50
19 27
20 19
21 6
22 4
23 1
24 1
25 0
26 6
27 74
28 573
29 2802
30 10087
31 26512
32 55088
33 91984
34 130267
35 157662
36 168890
37 158658
38 133576
39 98804
40 65664
41 38073
42 19963
43 9013
44 3779

[1,0,1,0,1,1,0,2,3,3,1,1,0,3,17,36,60,56,50,27,19,
 6,4,1,1,0,6,74,573,2802,10087,26512,55088,91984,
 130267,157662,168890,158658,133576,98804,65664,
 38073,19963,9013,3779]

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Last modified April 12 18:58 EDT 2021. Contains 342932 sequences. (Running on oeis4.)