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 | 5 |
| 2 | 13 |
| 3 | 313 |
| 4 | 1153 |
| 5 | 26206 |
| 6 | 100318 |
| 7 | 111928 |
| 8 | 160873 |
| 9 | 363283 |
| 10 | 644278 |
| 11 | 1676428 |
| 12 | 2097808 |
| 13 | 2639518 |
| 14 | 3875998 |
| 15 | 5349238 |
| 16 | 5738773 |
| 17 | 5903638 |
| 18 | 6045583 |
| 19 | 11272903 |
| 20 | 13192933 |
| 21 | 17242333 |
| 22 | 18234403 |
| 23 | 19667998 |
| 24 | 29520643 |
| 25 | 29595193 |
| 26 | 31944238 |
| 27 | 36918448 |
| 28 | 37049803 |
| 29 | 37201813 |
| 30 | 43522288 |