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 | 16 |
| 2 | 101 |
| 3 | 373 |
| 4 | 1156 |
| 5 | 3469 |
| 6 | 10562 |
| 7 | 32910 |
| 8 | 105020 |
| 9 | 342575 |
| 10 | 1136503 |
| 11 | 3815322 |
| 12 | 12904448 |
| 13 | 43836891 |
| 14 | 149266926 |
| 15 | 508857756 |
| 16 | 1735637682 |
| 17 | 5921189882 |
| 18 | 20201365165 |
| 19 | 68920464104 |
| 20 | 235127759007 |
| 21 | 802136163910 |
| 22 | 2736424196762 |
| 23 | 9334965911219 |