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) |
|---|---|
| 5 | 24 |
| 6 | 308 |
| 7 | 2236 |
| 8 | 11640 |
| 9 | 47753 |
| 10 | 163419 |
| 11 | 485121 |
| 12 | 1284987 |
| 13 | 3101175 |
| 14 | 6927921 |
| 15 | 14502059 |
| 16 | 28718989 |
| 17 | 54217878 |
| 18 | 98183330 |
| 19 | 171418854 |
| 20 | 289756194 |
| 21 | 475873962 |
| 22 | 761609034 |
| 23 | 1190854830 |
| 24 | 1823151902 |
| 25 | 2738088199 |
| 26 | 4040638965 |
| 27 | 5867589455 |
| 28 | 8395197525 |
| 29 | 11848267665 |