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 | 0 |
| 2 | 2 |
| 3 | 12 |
| 4 | 44 |
| 5 | 137 |
| 6 | 157 |
| 7 | 167 |
| 8 | 248 |
| 9 | 258 |
| 10 | 1639 |
| 11 | 1664 |
| 12 | 1694 |
| 13 | 5392 |
| 14 | 15904 |
| 15 | 16997 |
| 16 | 160187 |
| 17 | 487619 |
| 18 | 1547147 |
| 19 | 14674184 |
| 20 | 14790532 |
| 21 | 15019614 |
| 22 | 15336644 |
| 23 | 25234083 |
| 24 | 26132578 |
| 25 | 26211438 |
| 26 | 26216753 |
| 27 | 48675319 |
| 28 | 49407017 |
| 29 | 52030352 |
| 30 | 54072524 |
| 31 | 151698472 |
| 32 | 164399727 |
| 33 | 497665874 |