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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 9 |
| 5 | 16 |
| 6 | 28 |
| 7 | 50 |
| 8 | 87 |
| 9 | 153 |
| 10 | 269 |
| 11 | 471 |
| 12 | 825 |
| 13 | 1443 |
| 14 | 2526 |
| 15 | 4421 |
| 16 | 7737 |
| 17 | 13540 |
| 18 | 23696 |
| 19 | 41468 |
| 20 | 72570 |
| 21 | 126998 |
| 22 | 222247 |
| 23 | 388933 |
| 24 | 680633 |
| 25 | 1191108 |
| 26 | 2084439 |
| 27 | 3647768 |
| 28 | 6383595 |
| 29 | 11171292 |
| 30 | 19549761 |
| 31 | 34212082 |
| 32 | 59871144 |
| 33 | 104774502 |
| 34 | 183355379 |