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.

A063038 a(n) = floor(n*sqrt(n)) - d(n), where d(n) is the number of divisors function.

Table of values

n a(n)
1 0
2 0
3 3
4 5
5 9
6 10
7 16
8 18
9 24
10 27
11 34
12 35
13 44
14 48
15 54
16 59
17 68
18 70
19 80
20 83
21 92
22 99
23 108
24 109
25 122
26 128
27 136
28 142
29 154
30 156
31 170
32 175
33 185
34 194
35 203
36 207
37 223
38 230
39 239
40 244
41 260
42 264
43 279
44 285
45 295
46 307
47 320
48 322
49 340
50 347
51 360
52 368
53 383
54 388
55 403
56 411
57 426
58 437

List of values

[0, 0, 3, 5, 9, 10, 16, 18, 24, 27, 34, 35, 44, 48, 54, 59, 68, 70, 80, 83, 92, 99, 108, 109, 122, 128, 136, 142, 154, 156, 170, 175, 185, 194, 203, 207, 223, 230, 239, 244, 260, 264, 279, 285, 295, 307, 320, 322, 340, 347, 360, 368, 383, 388, 403, 411, 426, 437]