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 | 2 |
| 1 | 3 |
| 2 | 3 |
| 3 | 7 |
| 4 | 12 |
| 5 | 22 |
| 6 | 39 |
| 7 | 122 |
| 8 | 48 |
| 9 | 5 |
| 10 | 879 |
| 11 | 837 |
| 12 | 12864 |
| 13 | 31082 |
| 14 | 16125 |
| 15 | 12468 |
| 16 | 1048203 |
| 17 | -18599 |
| 18 | 31975 |
| 19 | -10373904 |
| 20 | 8012 |
| 21 | -21693 |
| 22 | -1788161 |
| 23 | -508374 |
| 24 | -1326713 |
| 25 | -281258 |
| 26 | 78675955 |
| 27 | 563498273327 |
| 28 | 551589853 |
| 29 | 2233965 |
| 30 | 34039922629 |
| 31 | -2425388265169 |
| 32 | 325756512 |
| 33 | -5767155 |
| 34 | -781377548147642 |