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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A346913 Irregular triangle read by rows where each row is the level sequence of a rooted tree in Beyer and Hedetniemi's iteration.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 2
6 3
7 1
8 2
9 2
10 1
11 2
12 3
13 4
14 1
15 2
16 3
17 3
18 1
19 2
20 3
21 2
22 1
23 2
24 2
25 2
26 1
27 2
28 3
29 4
30 5
31 1
32 2
33 3
34 4
35 4
36 1
37 2
38 3
39 4
40 3
41 1
42 2
43 3
44 4
45 2
46 1
47 2
48 3
49 3
50 3
51 1
52 2
53 3
54 3
55 2
56 1
57 2
58 3
59 2
60 3
61 1
62 2
63 3
64 2
65 2
66 1
67 2
68 2
69 2
70 2
71 1
72 2
73 3
74 4
75 5
76 6
77 1
78 2
79 3
80 4
81 5
82 5
83 1
84 2
85 3
86 4
87 5
88 4

List of values

[1, 1, 2, 1, 2, 3, 1, 2, 2, 1, 2, 3, 4, 1, 2, 3, 3, 1, 2, 3, 2, 1, 2, 2, 2, 1, 2, 3, 4, 5, 1, 2, 3, 4, 4, 1, 2, 3, 4, 3, 1, 2, 3, 4, 2, 1, 2, 3, 3, 3, 1, 2, 3, 3, 2, 1, 2, 3, 2, 3, 1, 2, 3, 2, 2, 1, 2, 2, 2, 2, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 5, 1, 2, 3, 4, 5, 4]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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