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.

A282538 Odd integers n with the property that the largest prime factor of n^2+4 is less than n.

Table of values

n a(n)
1 11
2 29
3 49
4 59
5 99
6 111
7 121
8 127
9 141
10 161
11 179
12 199
13 205
14 211
15 213
16 219
17 237
18 247
19 261
20 283
21 289
22 309
23 311
24 335
25 359
26 369
27 387
28 393
29 411
30 417
31 419
32 433
33 441
34 469
35 479
36 485
37 521
38 523
39 527
40 535
41 569
42 581
43 595
44 603
45 611
46 619
47 621
48 633
49 643
50 679
51 691
52 705
53 711
54 715
55 723
56 729
57 739
58 741
59 749
60 759

List of values

[11, 29, 49, 59, 99, 111, 121, 127, 141, 161, 179, 199, 205, 211, 213, 219, 237, 247, 261, 283, 289, 309, 311, 335, 359, 369, 387, 393, 411, 417, 419, 433, 441, 469, 479, 485, 521, 523, 527, 535, 569, 581, 595, 603, 611, 619, 621, 633, 643, 679, 691, 705, 711, 715, 723, 729, 739, 741, 749, 759]

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

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