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 | -1 |
1 | 1 |
2 | -5 |
3 | 19 |
4 | -89 |
5 | 415 |
6 | -1961 |
7 | 9271 |
8 | -43865 |
9 | 207559 |
10 | -982169 |
11 | 4647655 |
12 | -21992921 |
13 | 104071591 |
14 | -492472025 |
15 | 2330402599 |
16 | -11027583449 |
17 | 52183085095 |
18 | -246933009881 |
19 | 1168499548711 |
20 | -5529399232985 |
21 | 26165398105639 |
22 | -123815993235929 |
23 | 585903570781735 |
24 | -2772525465274841 |