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 | 15 |
| 2 | 143 |
| 3 | 3599 |
| 4 | 5183 |
| 5 | 11663 |
| 6 | 32399 |
| 7 | 36863 |
| 8 | 51983 |
| 9 | 57599 |
| 10 | 97343 |
| 11 | 121103 |
| 12 | 176399 |
| 13 | 186623 |
| 14 | 359999 |
| 15 | 435599 |
| 16 | 685583 |
| 17 | 1040399 |
| 18 | 1065023 |
| 19 | 1192463 |
| 20 | 1327103 |
| 21 | 1742399 |
| 22 | 2039183 |
| 23 | 2108303 |
| 24 | 2214143 |
| 25 | 2585663 |
| 26 | 2624399 |
| 27 | 2782223 |