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.

A113623 7-smooth numbers containing only noncomposite digits (1,2,3,5,7).

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 7
6 12
7 15
8 21
9 25
10 27
11 32
12 35
13 72
14 75
15 112
16 125
17 135
18 175
19 225
20 252
21 315
22 375
23 512
24 525
25 735
26 1125
27 1152
28 1215
29 1225
30 1323
31 1372
32 1512
33 1575
34 1715
35 2352
36 3125
37 3375
38 13122
39 13125
40 15552
41 25515
42 25725
43 31752
44 35721
45 55125
46 77175
47 111132

List of values

[1, 2, 3, 5, 7, 12, 15, 21, 25, 27, 32, 35, 72, 75, 112, 125, 135, 175, 225, 252, 315, 375, 512, 525, 735, 1125, 1152, 1215, 1225, 1323, 1372, 1512, 1575, 1715, 2352, 3125, 3375, 13122, 13125, 15552, 25515, 25725, 31752, 35721, 55125, 77175, 111132]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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