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 | 252 |
| 2 | 403 |
| 3 | 504 |
| 4 | 660 |
| 5 | 816 |
| 6 | 2772 |
| 7 | 3267 |
| 8 | 4356 |
| 9 | 20502 |
| 10 | 22932 |
| 11 | 23632 |
| 12 | 25452 |
| 13 | 26962 |
| 14 | 27972 |
| 15 | 31003 |
| 16 | 32967 |
| 17 | 35143 |
| 18 | 41004 |
| 19 | 43956 |
| 20 | 45864 |
| 21 | 48384 |
| 22 | 48616 |
| 23 | 55242 |
| 24 | 58422 |
| 25 | 66976 |
| 26 | 75525 |
| 27 | 225522 |
| 28 | 252252 |
| 29 | 259952 |
| 30 | 279972 |
| 31 | 329967 |
| 32 | 341033 |
| 33 | 403403 |
| 34 | 439956 |
| 35 | 451044 |
| 36 | 504504 |
| 37 | 619916 |