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.
n | a(n) |
---|---|
0 | 0 |
1 | -1 |
2 | -3 |
3 | -6 |
4 | -10 |
5 | -15 |
6 | -21 |
7 | -28 |
8 | -36 |
9 | -45 |
10 | -45 |
11 | -44 |
12 | -42 |
13 | -39 |
14 | -35 |
15 | -30 |
16 | -24 |
17 | -17 |
18 | -9 |
19 | 0 |
20 | 0 |
21 | 2 |
22 | 6 |
23 | 12 |
24 | 20 |
25 | 30 |
26 | 42 |
27 | 56 |
28 | 72 |
29 | 90 |
30 | 90 |
31 | 93 |
32 | 99 |
33 | 108 |
34 | 120 |
35 | 135 |
36 | 153 |
37 | 174 |
38 | 198 |
39 | 225 |
40 | 225 |
41 | 229 |
42 | 237 |
43 | 249 |
44 | 265 |
45 | 285 |
46 | 309 |
47 | 337 |
48 | 369 |
49 | 405 |
50 | 405 |
51 | 410 |
52 | 420 |
53 | 435 |
54 | 455 |
55 | 480 |
56 | 510 |
57 | 545 |
58 | 585 |
59 | 630 |
60 | 630 |
61 | 636 |
62 | 648 |
63 | 666 |