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 | 13 |
| 3 | 169 |
| 4 | 2197 |
| 5 | 14209 |
| 6 | 28561 |
| 7 | 184717 |
| 8 | 371293 |
| 9 | 2401321 |
| 10 | 4826809 |
| 11 | 15530437 |
| 12 | 31217173 |
| 13 | 62748517 |
| 14 | 130238329 |
| 15 | 178895977 |
| 16 | 201895681 |
| 17 | 405823249 |
| 18 | 815730721 |
| 19 | 1693098277 |
| 20 | 2325647701 |
| 21 | 2422762381 |
| 22 | 2624643853 |
| 23 | 4286414821 |
| 24 | 5275702237 |