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 | 7 |
| 3 | 47 |
| 4 | 57 |
| 5 | 459 |
| 6 | 341 |
| 7 | 3349 |
| 8 | 3601 |
| 9 | 42131 |
| 10 | 44441 |
| 11 | 605453 |
| 12 | 631193 |
| 13 | 655217 |
| 14 | 1355479 |
| 15 | 23763863 |
| 16 | 24444543 |
| 17 | 476698557 |
| 18 | 162779395 |
| 19 | 166474515 |
| 20 | 34000335 |
| 21 | 265842403 |
| 22 | 812400067 |
| 23 | 20666950267 |
| 24 | 21010170067 |
| 25 | 192066102203 |
| 26 | 194934439103 |