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A274880 A statistic on orbital systems over n sectors: the number of orbitals with k restarts.

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 1
5 4
6 2
7 18
8 11
9 1
10 10
11 8
12 2
13 65
14 57
15 17
16 1
17 28
18 28
19 12
20 2
21 238
22 252
23 116
24 23
25 1
26 84
27 96
28 54
29 16
30 2
31 882
32 1050
33 615
34 195
35 29
36 1
37 264
38 330
39 220
40 88
41 20
42 2
43 3300
44 4257
45 2915
46 1210
47 294
48 35
49 1
50 858
51 1144
52 858
53 416
54 130
55 24
56 2
57 12441
58 17017
59 13013
60 6461
61 2093
62 413
63 41
64 1

List of values

[1, 1, 2, 5, 1, 4, 2, 18, 11, 1, 10, 8, 2, 65, 57, 17, 1, 28, 28, 12, 2, 238, 252, 116, 23, 1, 84, 96, 54, 16, 2, 882, 1050, 615, 195, 29, 1, 264, 330, 220, 88, 20, 2, 3300, 4257, 2915, 1210, 294, 35, 1, 858, 1144, 858, 416, 130, 24, 2, 12441, 17017, 13013, 6461, 2093, 413, 41, 1]