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.

A369248 Numbers of the form 12*m+3 for which there is no representation as a sum (p*q + p*r + q*r) with three odd primes p <= q <= r.

Table of values

n a(n)
1 3
2 15
3 63
4 99
5 159
6 171
7 207
8 219
9 243
10 279
11 303
12 339
13 387
14 399
15 531
16 579
17 603
18 639
19 675
20 699
21 747
22 783
23 819
24 879
25 891
26 963
27 1059
28 1107
29 1143
30 1179
31 1215
32 1227
33 1299
34 1323
35 1359
36 1467
37 1527
38 1563
39 1611
40 1659
41 1731
42 1779
43 1791
44 1803
45 1899
46 1923
47 1971
48 1983
49 2007
50 2019
51 2115
52 2235
53 2319
54 2403
55 2427
56 2487
57 2499
58 2547

List of values

[3, 15, 63, 99, 159, 171, 207, 219, 243, 279, 303, 339, 387, 399, 531, 579, 603, 639, 675, 699, 747, 783, 819, 879, 891, 963, 1059, 1107, 1143, 1179, 1215, 1227, 1299, 1323, 1359, 1467, 1527, 1563, 1611, 1659, 1731, 1779, 1791, 1803, 1899, 1923, 1971, 1983, 2007, 2019, 2115, 2235, 2319, 2403, 2427, 2487, 2499, 2547]

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

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