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.

A377884 Composite numbers k without prime factors that are divisors of the greatest primorial less than k.

Table of values

n a(n)
1 25
2 49
3 77
4 91
5 119
6 121
7 133
8 143
9 161
10 169
11 187
12 203
13 209
14 221
15 247
16 253
17 289
18 299
19 319
20 323
21 341
22 361
23 377
24 391
25 403
26 407
27 437
28 451
29 473
30 481
31 493
32 517
33 527
34 529
35 533
36 551
37 559
38 583
39 589
40 611
41 629
42 649
43 667
44 671
45 689
46 697
47 703
48 713
49 731
50 737
51 767
52 779
53 781
54 793
55 799

List of values

[25, 49, 77, 91, 119, 121, 133, 143, 161, 169, 187, 203, 209, 221, 247, 253, 289, 299, 319, 323, 341, 361, 377, 391, 403, 407, 437, 451, 473, 481, 493, 517, 527, 529, 533, 551, 559, 583, 589, 611, 629, 649, 667, 671, 689, 697, 703, 713, 731, 737, 767, 779, 781, 793, 799]

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

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