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A063180 as a simple table

n a(n)
1 1
2 0
3 1
4 0
5 1
6 2
7 0
8 2
9 3
10 4
11 0
12 4
13 7
14 10
15 12
16 0
17 12
18 22
19 31
20 38
21 42
22 0
23 42
24 80
25 115
26 144
27 166
28 178
29 0
30 178
31 344
32 500
33 637
34 748
35 828
36 870
37 0
38 870
39 1698
40 2488
41 3205
42 3820
43 4308
44 4652
45 4830
46 0
47 4830
48 9482
49 13968
50 18132

[1,0,1,0,1,2,0,2,3,4,0,4,7,10,12,0,12,22,31,38,42,
 0,42,80,115,144,166,178,0,178,344,500,637,748,828,
 870,0,870,1698,2488,3205,3820,4308,4652,4830,0,
 4830,9482,13968,18132]

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Last modified October 27 22:24 EDT 2021. Contains 348305 sequences. (Running on oeis4.)