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.

A056991 Numbers with digital root 1, 4, 7 or 9.

Table of values

n a(n)
1 1
2 4
3 7
4 9
5 10
6 13
7 16
8 18
9 19
10 22
11 25
12 27
13 28
14 31
15 34
16 36
17 37
18 40
19 43
20 45
21 46
22 49
23 52
24 54
25 55
26 58
27 61
28 63
29 64
30 67
31 70
32 72
33 73
34 76
35 79
36 81
37 82
38 85
39 88
40 90
41 91
42 94
43 97
44 99
45 100
46 103
47 106
48 108
49 109
50 112
51 115
52 117
53 118
54 121
55 124
56 126
57 127
58 130
59 133
60 135
61 136
62 139
63 142

List of values

[1, 4, 7, 9, 10, 13, 16, 18, 19, 22, 25, 27, 28, 31, 34, 36, 37, 40, 43, 45, 46, 49, 52, 54, 55, 58, 61, 63, 64, 67, 70, 72, 73, 76, 79, 81, 82, 85, 88, 90, 91, 94, 97, 99, 100, 103, 106, 108, 109, 112, 115, 117, 118, 121, 124, 126, 127, 130, 133, 135, 136, 139, 142]