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 | 33 |
| 3 | 1253 |
| 4 | 32001 |
| 5 | 1055253 |
| 6 | 22005133 |
| 7 | 432020401 |
| 8 | 12410423013 |
| 9 | 242000505413 |
| 10 | 5014143322001 |
| 11 | 2210214121042333 |
| 12 | 1105325341502010053 |
| 13 | 333110135101300035201 |
| 14 | 144230053432212010304453 |
| 15 | 51542110115212012113433133 |