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 | 19 |
| 2 | 21 |
| 3 | 40 |
| 4 | 61 |
| 5 | 101 |
| 6 | 162 |
| 7 | 263 |
| 8 | 425 |
| 9 | 688 |
| 10 | 1113 |
| 11 | 1801 |
| 12 | 2914 |
| 13 | 4715 |
| 14 | 7629 |
| 15 | 12344 |
| 16 | 19973 |
| 17 | 32317 |
| 18 | 52290 |
| 19 | 84607 |
| 20 | 136897 |
| 21 | 221504 |
| 22 | 358401 |
| 23 | 579905 |
| 24 | 938306 |
| 25 | 1518211 |
| 26 | 2456517 |
| 27 | 3974728 |
| 28 | 6431245 |
| 29 | 10405973 |