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 | 7 |
| 3 | 29 |
| 4 | 94 |
| 5 | 263 |
| 6 | 667 |
| 7 | 1577 |
| 8 | 3538 |
| 9 | 7622 |
| 10 | 15900 |
| 11 | 32314 |
| 12 | 64274 |
| 13 | 125561 |
| 14 | 241569 |
| 15 | 458715 |
| 16 | 861242 |
| 17 | 1601081 |
| 18 | 2950693 |
| 19 | 5396209 |
| 20 | 9801012 |
| 21 | 17692092 |
| 22 | 31759800 |
| 23 | 56727588 |
| 24 | 100861716 |
| 25 | 178585489 |
| 26 | 314995915 |
| 27 | 553650761 |
| 28 | 969967510 |
| 29 | 1694235803 |