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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.

A244425 Consider the sequence of almost natural numbers (A007376) and arrange it in a table by antidiagonals; sequence gives the main diagonal.

Table of values

n a(n)
1 1
2 5
3 1
4 7
5 5
6 5
7 7
8 1
9 7
10 5
11 1
12 1
13 1
14 5
15 1
16 1
17 1
18 2
19 2
20 9
21 3
22 3
23 7
24 4
25 4
26 7
27 5
28 5
29 7
30 6
31 6
32 9
33 7
34 7
35 3
36 8
37 9
38 7
39 8
40 7
41 7
42 8
43 0
44 3
45 7
46 2
47 8
48 5
49 3
50 2
51 2
52 3
53 5
54 8
55 2
56 7
57 3
58 0
59 8
60 7
61 7
62 8
63 0
64 3
65 7
66 2
67 8
68 5
69 3
70 2
71 2
72 3
73 5
74 8
75 2
76 7
77 3
78 0
79 8
80 7
81 7
82 8
83 0
84 3
85 7
86 2
87 8
88 5
89 3
90 2
91 2
92 3
93 5
94 8
95 2
96 7
97 3
98 0
99 8
100 7
101 7
102 8
103 0
104 3
105 7

List of values

[1, 5, 1, 7, 5, 5, 7, 1, 7, 5, 1, 1, 1, 5, 1, 1, 1, 2, 2, 9, 3, 3, 7, 4, 4, 7, 5, 5, 7, 6, 6, 9, 7, 7, 3, 8, 9, 7, 8, 7, 7, 8, 0, 3, 7, 2, 8, 5, 3, 2, 2, 3, 5, 8, 2, 7, 3, 0, 8, 7, 7, 8, 0, 3, 7, 2, 8, 5, 3, 2, 2, 3, 5, 8, 2, 7, 3, 0, 8, 7, 7, 8, 0, 3, 7, 2, 8, 5, 3, 2, 2, 3, 5, 8, 2, 7, 3, 0, 8, 7, 7, 8, 0, 3, 7]

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