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.

A368784 a(0) = 1. For n > 0, a(n) is the smallest integer k > n such that (Sum_{i = 1..n} i)/(Sum_{i = n + 1..k} i) < 1/n.

Table of values

n a(n)
0 1
1 2
2 4
3 7
4 10
5 13
6 17
7 21
8 25
9 30
10 35
11 40
12 45
13 50
14 56
15 62
16 68
17 74
18 81
19 87
20 94
21 101
22 108
23 115
24 122
25 130
26 138
27 145
28 153
29 162
30 170
31 178
32 187
33 195
34 204
35 213
36 222
37 231
38 240
39 250
40 259
41 269
42 279
43 289
44 298
45 309
46 319
47 329
48 339
49 350
50 361
51 371
52 382
53 393
54 404
55 415
56 427
57 438

List of values

[1, 2, 4, 7, 10, 13, 17, 21, 25, 30, 35, 40, 45, 50, 56, 62, 68, 74, 81, 87, 94, 101, 108, 115, 122, 130, 138, 145, 153, 162, 170, 178, 187, 195, 204, 213, 222, 231, 240, 250, 259, 269, 279, 289, 298, 309, 319, 329, 339, 350, 361, 371, 382, 393, 404, 415, 427, 438]

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

Content is available under The OEIS End-User License Agreement.