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.

A328525 Numbers k such that (k-1)*k*(k+1) = (k-1)*(1+u) = k*(1+v) = (k+1)*(1+w) with primes u, v, w.

Table of values

n a(n)
1 3
2 5
3 9
4 21
5 55
6 131
7 145
8 155
9 231
10 259
11 265
12 449
13 495
14 561
15 595
16 1045
17 1051
18 1365
19 1409
20 1491
21 1549
22 1849
23 1989
24 2001
25 2101
26 2469
27 2785
28 3365
29 3621
30 3641
31 3669
32 3845
33 3911
34 4285
35 4951
36 5181
37 5465
38 6049
39 6699
40 7189
41 7229
42 8219
43 8629
44 9175
45 9521
46 9539
47 9631
48 9729

List of values

[3, 5, 9, 21, 55, 131, 145, 155, 231, 259, 265, 449, 495, 561, 595, 1045, 1051, 1365, 1409, 1491, 1549, 1849, 1989, 2001, 2101, 2469, 2785, 3365, 3621, 3641, 3669, 3845, 3911, 4285, 4951, 5181, 5465, 6049, 6699, 7189, 7229, 8219, 8629, 9175, 9521, 9539, 9631, 9729]