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.

A195238 Numbers with at least 2 and not more than 3 distinct prime factors not greater than 7 that are multiples of 7 or of 15.

Table of values

n a(n)
1 14
2 15
3 21
4 28
5 30
6 35
7 42
8 45
9 56
10 60
11 63
12 70
13 75
14 84
15 90
16 98
17 105
18 112
19 120
20 126
21 135
22 140
23 147
24 150
25 168
26 175
27 180
28 189
29 196
30 224
31 225
32 240
33 245
34 252
35 270
36 280
37 294
38 300
39 315
40 336
41 350
42 360
43 375
44 378
45 392
46 405
47 441
48 448
49 450
50 480
51 490
52 504
53 525
54 540
55 560

List of values

[14, 15, 21, 28, 30, 35, 42, 45, 56, 60, 63, 70, 75, 84, 90, 98, 105, 112, 120, 126, 135, 140, 147, 150, 168, 175, 180, 189, 196, 224, 225, 240, 245, 252, 270, 280, 294, 300, 315, 336, 350, 360, 375, 378, 392, 405, 441, 448, 450, 480, 490, 504, 525, 540, 560]

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

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