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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.

A280919 Precipices from the successive terraces, descending by the main diagonal of the pyramid described in A245092. Also first differences of A071562.

Table of values

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

List of values

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

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