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.

A364029 Odd squarefree semiprimes s = p*q such that (p + q)/2 and (p - q)/2 are squarefree.

Table of values

n a(n)
1 21
2 35
3 51
4 69
5 85
6 91
7 93
8 123
9 133
10 187
11 213
12 219
13 221
14 235
15 237
16 253
17 259
18 267
19 339
20 341
21 355
22 365
23 371
24 381
25 395
26 411
27 413
28 437
29 445
30 451
31 453
32 469
33 485
34 493
35 501
36 573
37 611
38 635
39 667
40 669
41 685
42 699
43 723
44 731
45 755
46 763
47 771
48 779
49 781
50 789
51 803
52 813
53 843
54 851
55 893
56 899

List of values

[21, 35, 51, 69, 85, 91, 93, 123, 133, 187, 213, 219, 221, 235, 237, 253, 259, 267, 339, 341, 355, 365, 371, 381, 395, 411, 413, 437, 445, 451, 453, 469, 485, 493, 501, 573, 611, 635, 667, 669, 685, 699, 723, 731, 755, 763, 771, 779, 781, 789, 803, 813, 843, 851, 893, 899]

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

Content is available under The OEIS End-User License Agreement.