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 | 129 |
| 3 | 1337 |
| 4 | 13977 |
| 5 | 144762 |
| 6 | 1504399 |
| 7 | 15591122 |
| 8 | 161801518 |
| 9 | 1677624003 |
| 10 | 17403195529 |
| 11 | 180479056305 |
| 12 | 1871997954119 |
| 13 | 19414915574725 |
| 14 | 201369918597195 |
| 15 | 2088509247416759 |
| 16 | 21661501410101827 |
| 17 | 224664541142404827 |