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 | 2 |
| 3 | 40 |
| 4 | 49 |
| 5 | 51 |
| 6 | 98 |
| 7 | 105 |
| 8 | 3507 |
| 9 | 3693 |
| 10 | 4615 |
| 11 | 5745 |
| 12 | 6167 |
| 13 | 32775 |
| 14 | 102840 |
| 15 | 106971 |
| 16 | 2141244 |
| 17 | 2419715 |
| 18 | 4395321 |
| 19 | 5855239 |
| 20 | 6933770 |
| 21 | 10440279 |
| 22 | 20082095 |
| 23 | 55680314 |
| 24 | 95376809 |
| 25 | 205626971 |
| 26 | 240438171 |
| 27 | 319745247 |
| 28 | 346832939 |
| 29 | 432366596 |
| 30 | 877644251 |