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.

A320633 Composite numbers whose prime indices are also composite.

Table of values

n a(n)
1 49
2 91
3 133
4 161
5 169
6 203
7 247
8 259
9 299
10 301
11 329
12 343
13 361
14 371
15 377
16 427
17 437
18 481
19 497
20 511
21 529
22 551
23 553
24 559
25 611
26 623
27 637
28 667
29 679
30 689
31 703
32 707
33 721
34 749
35 791
36 793
37 817
38 841
39 851
40 893
41 917
42 923
43 931
44 949
45 959
46 973
47 989
48 1007
49 1027
50 1043
51 1057

List of values

[49, 91, 133, 161, 169, 203, 247, 259, 299, 301, 329, 343, 361, 371, 377, 427, 437, 481, 497, 511, 529, 551, 553, 559, 611, 623, 637, 667, 679, 689, 703, 707, 721, 749, 791, 793, 817, 841, 851, 893, 917, 923, 931, 949, 959, 973, 989, 1007, 1027, 1043, 1057]

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

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