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.

A027427 Number of distinct products ij with 0 <= i < j <= n.

Table of values

n a(n)
0 0
1 1
2 2
3 4
4 7
5 11
6 14
7 20
8 25
9 32
10 37
11 47
12 52
13 64
14 71
15 79
16 88
17 104
18 112
19 130
20 140
21 151
22 162
23 184
24 193
25 211
26 224
27 240
28 253
29 281
30 292
31 322
32 338
33 355
34 372
35 391
36 404
37 440
38 459
39 479
40 494
41 534
42 550
43 592
44 612
45 632
46 655
47 701
48 718
49 753
50 775
51 801
52 824
53 876

List of values

[0, 1, 2, 4, 7, 11, 14, 20, 25, 32, 37, 47, 52, 64, 71, 79, 88, 104, 112, 130, 140, 151, 162, 184, 193, 211, 224, 240, 253, 281, 292, 322, 338, 355, 372, 391, 404, 440, 459, 479, 494, 534, 550, 592, 612, 632, 655, 701, 718, 753, 775, 801, 824, 876]