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.

A213032 a(n) = floor(n/2)*floor(n/3)-floor(n/6)^2.

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 2
5 2
6 5
7 5
8 7
9 11
10 14
11 14
12 20
13 20
14 24
15 31
16 36
17 36
18 45
19 45
20 51
21 61
22 68
23 68
24 80
25 80
26 88
27 101
28 110
29 110
30 125
31 125
32 135
33 151
34 162
35 162
36 180
37 180
38 192
39 211
40 224
41 224
42 245
43 245
44 259
45 281
46 296
47 296
48 320
49 320
50 336
51 361
52 378
53 378
54 405
55 405
56 423
57 451

List of values

[0, 0, 0, 1, 2, 2, 5, 5, 7, 11, 14, 14, 20, 20, 24, 31, 36, 36, 45, 45, 51, 61, 68, 68, 80, 80, 88, 101, 110, 110, 125, 125, 135, 151, 162, 162, 180, 180, 192, 211, 224, 224, 245, 245, 259, 281, 296, 296, 320, 320, 336, 361, 378, 378, 405, 405, 423, 451]