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.

A156023 a(n) = n*(n+1)/2 - A112509(n).

Table of values

n a(n)
1 0
2 0
3 1
4 3
5 5
6 8
7 11
8 14
9 18
10 22
11 26
12 31
13 36
14 41
15 47
16 53
17 59
18 65
19 72
20 79
21 86
22 93
23 100
24 108
25 116
26 124
27 132
28 141
29 150
30 159
31 168
32 177
33 186
34 196
35 206
36 216
37 226
38 237
39 248
40 259
41 270
42 281
43 292
44 303
45 315
46 327
47 339
48 351
49 363
50 376
51 389
52 401
53 414
54 427
55 440
56 453
57 467
58 481

List of values

[0, 0, 1, 3, 5, 8, 11, 14, 18, 22, 26, 31, 36, 41, 47, 53, 59, 65, 72, 79, 86, 93, 100, 108, 116, 124, 132, 141, 150, 159, 168, 177, 186, 196, 206, 216, 226, 237, 248, 259, 270, 281, 292, 303, 315, 327, 339, 351, 363, 376, 389, 401, 414, 427, 440, 453, 467, 481]