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 | 3 |
| 3 | 10 |
| 4 | 11 |
| 5 | 56 |
| 6 | 57 |
| 7 | 400 |
| 8 | 401 |
| 9 | 402 |
| 10 | 403 |
| 11 | 4434 |
| 12 | 4435 |
| 13 | 57656 |
| 14 | 57657 |
| 15 | 57658 |
| 16 | 57659 |
| 17 | 980204 |
| 18 | 980205 |
| 19 | 18623896 |
| 20 | 18623897 |
| 21 | 18623898 |
| 22 | 18623899 |
| 23 | 428349678 |
| 24 | 428349679 |
| 25 | 428349680 |
| 26 | 428349681 |
| 27 | 428349682 |
| 28 | 428349683 |
| 29 | 12422140808 |
| 30 | 12422140809 |
| 31 | 385086365080 |
| 32 | 385086365081 |