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.

A118026 a(0) = 0, a(n) = a(n-1) + (largest integer which is <= n and is missing from the earlier terms of the sequence).

Table of values

n a(n)
0 0
1 1
2 3
3 5
4 9
5 13
6 19
7 26
8 34
9 42
10 52
11 63
12 75
13 87
14 101
15 116
16 132
17 149
18 167
19 185
20 205
21 226
22 248
23 271
24 295
25 320
26 345
27 372
28 400
29 429
30 459
31 490
32 522
33 555
34 588
35 623
36 659
37 696
38 734
39 773
40 813
41 854
42 895
43 938
44 982
45 1027
46 1073
47 1120
48 1168
49 1217
50 1267
51 1318
52 1369
53 1422

List of values

[0, 1, 3, 5, 9, 13, 19, 26, 34, 42, 52, 63, 75, 87, 101, 116, 132, 149, 167, 185, 205, 226, 248, 271, 295, 320, 345, 372, 400, 429, 459, 490, 522, 555, 588, 623, 659, 696, 734, 773, 813, 854, 895, 938, 982, 1027, 1073, 1120, 1168, 1217, 1267, 1318, 1369, 1422]