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 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 17 |
| 6 | 31 |
| 7 | 71 |
| 8 | 157 |
| 9 | 227 |
| 10 | 293 |
| 11 | 349 |
| 12 | 419 |
| 13 | 557 |
| 14 | 1663 |
| 15 | 2269 |
| 16 | 2609 |
| 17 | 3547 |
| 18 | 3943 |
| 19 | 15761 |
| 20 | 17477 |
| 21 | 37243 |
| 22 | 70481 |
| 23 | 105557 |
| 24 | 23913779 |
| 25 | 84394837 |
| 26 | 7057254647 |
| 27 | 3915885721591 |
| 28 | 4641244746324673 |
| 29 | 5266511621347511 |
| 30 | 565552908731370799 |