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) |
|---|---|
| 4 | 11 |
| 5 | 59 |
| 6 | 359 |
| 7 | 1799 |
| 8 | 7091 |
| 9 | 22995 |
| 10 | 64143 |
| 11 | 159093 |
| 12 | 359348 |
| 13 | 752180 |
| 14 | 1478204 |
| 15 | 2754752 |
| 16 | 4906202 |
| 17 | 8402522 |
| 18 | 13907394 |
| 19 | 22337388 |
| 20 | 34933761 |
| 21 | 53348561 |
| 22 | 79746821 |
| 23 | 116926733 |
| 24 | 168459797 |
| 25 | 238853045 |
| 26 | 333735545 |
| 27 | 460071495 |
| 28 | 626402322 |
| 29 | 843120306 |
| 30 | 1122776354 |