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 | 22 |
| 2 | 169 |
| 3 | 607 |
| 4 | 1601 |
| 5 | 3699 |
| 6 | 8007 |
| 7 | 16742 |
| 8 | 34096 |
| 9 | 67890 |
| 10 | 132115 |
| 11 | 251110 |
| 12 | 465910 |
| 13 | 843960 |
| 14 | 1493505 |
| 15 | 2584666 |
| 16 | 4379914 |
| 17 | 7277630 |
| 18 | 11873716 |
| 19 | 19047873 |
| 20 | 30083272 |
| 21 | 46831011 |
| 22 | 71934087 |
| 23 | 109129744 |
| 24 | 163654129 |
| 25 | 242779358 |
| 26 | 356520541 |
| 27 | 518559236 |
| 28 | 747440414 |