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.

A350371 Numbers with exactly 4 semiprime divisors.

Table of values

n a(n)
1 60
2 84
3 90
4 120
5 126
6 132
7 140
8 150
9 156
10 168
11 198
12 204
13 220
14 228
15 234
16 240
17 260
18 264
19 270
20 276
21 280
22 294
23 306
24 308
25 312
26 315
27 336
28 340
29 342
30 348
31 350
32 364
33 372
34 378
35 380
36 408
37 414
38 440
39 444
40 456
41 460
42 476
43 480
44 490
45 492
46 495
47 516
48 520
49 522
50 525
51 528
52 532
53 550
54 552
55 558

List of values

[60, 84, 90, 120, 126, 132, 140, 150, 156, 168, 198, 204, 220, 228, 234, 240, 260, 264, 270, 276, 280, 294, 306, 308, 312, 315, 336, 340, 342, 348, 350, 364, 372, 378, 380, 408, 414, 440, 444, 456, 460, 476, 480, 490, 492, 495, 516, 520, 522, 525, 528, 532, 550, 552, 558]