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 | 23 |
| 3 | 43 |
| 4 | 461 |
| 5 | 859 |
| 6 | 9197 |
| 7 | 17137 |
| 8 | 183479 |
| 9 | 341881 |
| 10 | 3660383 |
| 11 | 6820483 |
| 12 | 73024181 |
| 13 | 136067779 |
| 14 | 1456823237 |
| 15 | 2714535097 |
| 16 | 29063440559 |
| 17 | 54154634161 |
| 18 | 579811987943 |
| 19 | 1080378148123 |
| 20 | 11567176318301 |
| 21 | 21553408328299 |
| 22 | 230763714378077 |
| 23 | 429987788417857 |
| 24 | 4603707111243239 |