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 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 17 |
| 5 | 79 |
| 6 | 97 |
| 7 | 257 |
| 8 | 457 |
| 9 | 65537 |
| 10 | 677041 |
| 11 | 1354081 |
| 12 | 7812169 |
| 13 | 13650001 |
| 14 | 21381361 |
| 15 | 65246161 |
| 16 | 134246401 |
| 17 | 242235841 |
| 18 | 277032001 |
| 19 | 393414001 |
| 20 | 468930001 |
| 21 | 793605121 |
| 22 | 859560241 |
| 23 | 886966081 |
| 24 | 1609179001 |
| 25 | 3355067041 |
| 26 | 4269249601 |
| 27 | 6024794161 |
| 28 | 8120048641 |
| 29 | 10142988241 |
| 30 | 10466887201 |