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 | 1353 |
| 2 | 15613 |
| 3 | 159168 |
| 4 | 1803859 |
| 5 | 18970267 |
| 6 | 211569948 |
| 7 | 2259371001 |
| 8 | 24946035357 |
| 9 | 268635598788 |
| 10 | 2948447364239 |
| 11 | 31900157480147 |
| 12 | 348917447759080 |
| 13 | 3785118935837593 |
| 14 | 41318554169121573 |
| 15 | 448913396152129472 |