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.

A171469 Nonnegative nonprimes which are neither the sum nor the product of two distinct primes.

Table of values

n a(n)
1 0
2 1
3 4
4 27
5 117
6 121
7 125
8 135
9 147
10 171
11 189
12 207
13 245
14 255
15 261
16 275
17 289
18 297
19 325
20 343
21 345
22 357
23 363
24 387
25 405
26 425
27 429
28 455
29 475
30 477
31 483
32 495
33 507
34 513
35 529
36 531
37 539
38 555
39 561
40 567
41 575
42 585
43 605
44 625
45 627
46 637
47 639
48 651
49 657
50 665
51 705
52 715
53 725
54 747
55 765
56 777

List of values

[0, 1, 4, 27, 117, 121, 125, 135, 147, 171, 189, 207, 245, 255, 261, 275, 289, 297, 325, 343, 345, 357, 363, 387, 405, 425, 429, 455, 475, 477, 483, 495, 507, 513, 529, 531, 539, 555, 561, 567, 575, 585, 605, 625, 627, 637, 639, 651, 657, 665, 705, 715, 725, 747, 765, 777]

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

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