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.

A225523 Number of distinct products i*j over all pairs (i,j) with |i| + |j| <= n.

Table of values

n a(n)
0 1
1 1
2 3
3 5
4 9
5 11
6 17
7 21
8 27
9 33
10 39
11 43
12 53
13 59
14 69
15 79
16 89
17 97
18 107
19 117
20 131
21 143
22 157
23 167
24 183
25 195
26 209
27 223
28 237
29 249
30 269
31 283
32 301
33 317
34 335
35 353
36 373
37 389
38 409
39 427
40 449
41 465
42 491
43 509
44 535
45 557
46 581
47 603
48 631
49 657
50 679

List of values

[1, 1, 3, 5, 9, 11, 17, 21, 27, 33, 39, 43, 53, 59, 69, 79, 89, 97, 107, 117, 131, 143, 157, 167, 183, 195, 209, 223, 237, 249, 269, 283, 301, 317, 335, 353, 373, 389, 409, 427, 449, 465, 491, 509, 535, 557, 581, 603, 631, 657, 679]