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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.

A330879 Numbers with a divisor pair (d,n/d) such that the smallest prime greater than d and n/d is the same.

Table of values

n a(n)
1 1
2 4
3 9
4 12
5 16
6 25
7 30
8 36
9 49
10 56
11 63
12 64
13 70
14 72
15 80
16 81
17 90
18 100
19 121
20 132
21 144
22 169
23 182
24 195
25 196
26 208
27 210
28 224
29 225
30 240
31 256
32 289
33 306
34 324
35 361
36 380
37 399
38 400
39 418
40 420
41 440
42 441
43 462
44 484
45 529
46 552
47 575
48 576
49 598
50 600
51 621
52 624
53 625
54 644
55 648
56 650
57 672

List of values

[1, 4, 9, 12, 16, 25, 30, 36, 49, 56, 63, 64, 70, 72, 80, 81, 90, 100, 121, 132, 144, 169, 182, 195, 196, 208, 210, 224, 225, 240, 256, 289, 306, 324, 361, 380, 399, 400, 418, 420, 440, 441, 462, 484, 529, 552, 575, 576, 598, 600, 621, 624, 625, 644, 648, 650, 672]

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

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