cp's OEIS Frontend

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.

A000030 Initial digit of n.

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 1
11 1
12 1
13 1
14 1
15 1
16 1
17 1
18 1
19 1
20 2
21 2
22 2
23 2
24 2
25 2
26 2
27 2
28 2
29 2
30 3
31 3
32 3
33 3
34 3
35 3
36 3
37 3
38 3
39 3
40 4
41 4
42 4
43 4
44 4
45 4
46 4
47 4
48 4
49 4
50 5
51 5
52 5
53 5
54 5
55 5
56 5
57 5
58 5
59 5
60 6
61 6
62 6
63 6
64 6
65 6
66 6
67 6
68 6
69 6
70 7
71 7
72 7
73 7
74 7
75 7
76 7
77 7
78 7
79 7
80 8
81 8
82 8
83 8
84 8
85 8
86 8
87 8
88 8
89 8
90 9
91 9
92 9
93 9
94 9
95 9
96 9
97 9
98 9
99 9
100 1
101 1
102 1
103 1
104 1
105 1
106 1
107 1
108 1
109 1
110 1
111 1
112 1
113 1
114 1
115 1
116 1
117 1
118 1
119 1
120 1
121 1
122 1
123 1
124 1
125 1
126 1
127 1
128 1
129 1
130 1
131 1
132 1

List of values

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