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 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 25 |
| 6 | 49 |
| 7 | 88 |
| 8 | 158 |
| 9 | 273 |
| 10 | 468 |
| 11 | 779 |
| 12 | 1284 |
| 13 | 2075 |
| 14 | 3323 |
| 15 | 5237 |
| 16 | 8182 |
| 17 | 12625 |
| 18 | 19323 |
| 19 | 29269 |
| 20 | 44004 |
| 21 | 65585 |
| 22 | 97084 |
| 23 | 142627 |
| 24 | 208233 |
| 25 | 302008 |
| 26 | 435525 |
| 27 | 624363 |
| 28 | 890414 |
| 29 | 1263105 |
| 30 | 1783200 |
| 31 | 2505329 |