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.

A202021 The leading digit of (10^n)!.

Table of values

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

List of values

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