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 | 12 |
| 2 | 160 |
| 3 | 2121 |
| 4 | 28154 |
| 5 | 372560 |
| 6 | 4934366 |
| 7 | 65352789 |
| 8 | 865523957 |
| 9 | 11462977378 |
| 10 | 151815415029 |
| 11 | 2010639231109 |
| 12 | 26628853182336 |
| 13 | 352671832205165 |
| 14 | 4670776468884680 |
| 15 | 61859640739887596 |
| 16 | 819267455394261112 |