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.

A276553 Numbers n such that n^2 and (n + 1)^2 have the same number of divisors.

Table of values

n a(n)
1 2
2 14
3 15
4 21
5 33
6 34
7 38
8 44
9 57
10 75
11 81
12 85
13 86
14 93
15 94
16 98
17 116
18 118
19 122
20 133
21 135
22 141
23 142
24 145
25 147
26 158
27 171
28 177
29 201
30 202
31 205
32 213
33 214
34 217
35 218
36 230
37 244
38 253
39 272
40 285
41 296
42 298
43 301
44 302
45 326
46 332
47 334
48 375
49 381
50 387
51 393
52 394
53 405
54 429
55 434
56 445

List of values

[2, 14, 15, 21, 33, 34, 38, 44, 57, 75, 81, 85, 86, 93, 94, 98, 116, 118, 122, 133, 135, 141, 142, 145, 147, 158, 171, 177, 201, 202, 205, 213, 214, 217, 218, 230, 244, 253, 272, 285, 296, 298, 301, 302, 326, 332, 334, 375, 381, 387, 393, 394, 405, 429, 434, 445]