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 | 107 |
| 4 | 1283 |
| 5 | 8747 |
| 6 | 21401 |
| 7 | 34667 |
| 8 | 46187 |
| 9 | 104003 |
| 10 | 137387 |
| 11 | 138563 |
| 12 | 374929 |
| 13 | 549547 |
| 14 | 2204243 |
| 15 | 2771281 |
| 16 | 2808107 |
| 17 | 11128427 |
| 18 | 11223683 |
| 19 | 13497443 |
| 20 | 14880347 |
| 21 | 21747529 |
| 22 | 22753547 |
| 23 | 23712683 |
| 24 | 33697283 |
| 25 | 44513387 |
| 26 | 46970929 |
| 27 | 57395627 |
| 28 | 65898683 |