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) |
---|---|
1 | 0 |
2 | 2 |
3 | 1 |
4 | 5 |
5 | -3 |
6 | 7 |
7 | -5 |
8 | 9 |
9 | -7 |
10 | 11 |
11 | -9 |
12 | 13 |
13 | -11 |
14 | 15 |
15 | -13 |
16 | 17 |
17 | -15 |
18 | 19 |
19 | -17 |
20 | 21 |
21 | -19 |
22 | 23 |
23 | -21 |
24 | 25 |
25 | -23 |
26 | 27 |
27 | -25 |
28 | 29 |
29 | -27 |
30 | 31 |
31 | -29 |
32 | 33 |
33 | -31 |
34 | 35 |
35 | -33 |
36 | 37 |
37 | -35 |
38 | 39 |
39 | -37 |
40 | 41 |
41 | -39 |
42 | 43 |
43 | -41 |
44 | 45 |
45 | -43 |
46 | 47 |
47 | -45 |
48 | 49 |
49 | -47 |
50 | 51 |
51 | -49 |
52 | 53 |
53 | -51 |