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 | 5 |
| 3 | 23 |
| 4 | 33 |
| 5 | 87 |
| 6 | 278 |
| 7 | 495 |
| 8 | 1293 |
| 9 | 2027 |
| 10 | 2690 |
| 11 | 4245 |
| 12 | 6773 |
| 13 | 13283 |
| 14 | 24938 |
| 15 | 28893 |
| 16 | 44270 |
| 17 | 67475 |
| 18 | 139708 |
| 19 | 224922 |
| 20 | 315893 |
| 21 | 971000 |
| 22 | 1723960 |
| 23 | 3319792 |
| 24 | 6228255 |
| 25 | 7013717 |
| 26 | 13194622 |
| 27 | 25321985 |
| 28 | 31864375 |
| 29 | 32163975 |
| 30 | 65155398 |
| 31 | 86090027 |
| 32 | 381175405 |
| 33 | 452803425 |