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 | 7 |
| 3 | 71 |
| 4 | 107 |
| 5 | 242 |
| 6 | 431 |
| 7 | 1151 |
| 8 | 2591 |
| 9 | 3887 |
| 10 | 21599 |
| 11 | 49391 |
| 12 | 76831 |
| 13 | 79999 |
| 14 | 107647 |
| 15 | 139967 |
| 16 | 179999 |
| 17 | 197567 |
| 18 | 268911 |
| 19 | 345599 |
| 20 | 346111 |
| 21 | 401407 |
| 22 | 438047 |
| 23 | 472391 |
| 24 | 995327 |
| 25 | 1031047 |
| 26 | 1143071 |
| 27 | 1249999 |
| 28 | 1254527 |
| 29 | 1349999 |
| 30 | 1438207 |
| 31 | 1685447 |
| 32 | 2056751 |
| 33 | 2411207 |
| 34 | 2829887 |
| 35 | 3269807 |
| 36 | 4464071 |