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 | 110 |
| 2 | 1523 |
| 3 | 9858 |
| 4 | 42479 |
| 5 | 141688 |
| 6 | 395929 |
| 7 | 971416 |
| 8 | 2156867 |
| 9 | 4424298 |
| 10 | 8509105 |
| 11 | 15512938 |
| 12 | 27033149 |
| 13 | 45322876 |
| 14 | 73486107 |
| 15 | 115712352 |
| 16 | 177555837 |
| 17 | 266264422 |
| 18 | 391163735 |
| 19 | 564102306 |
| 20 | 799963779 |
| 21 | 1117252576 |
| 22 | 1538759685 |
| 23 | 2092315544 |