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 | 16 |
| 4 | 17 |
| 5 | 47 |
| 6 | 241 |
| 7 | 242 |
| 8 | 1249 |
| 9 | 4049 |
| 10 | 120049 |
| 11 | 3693761 |
| 12 | 14268481 |
| 13 | 22997761 |
| 14 | 28140001 |
| 15 | 35296801 |
| 16 | 83747681 |
| 17 | 91801249 |
| 18 | 256692481 |
| 19 | 971435041 |
| 20 | 1261928321 |
| 21 | 1429948241 |
| 22 | 1691176481 |
| 23 | 1697230321 |
| 24 | 2168901521 |
| 25 | 3018800401 |
| 26 | 4199128081 |
| 27 | 5795553121 |
| 28 | 7626372001 |
| 29 | 7940268161 |
| 30 | 11438281249 |