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 | 10 |
| 2 | 15 |
| 3 | 21 |
| 4 | 28 |
| 5 | 36 |
| 6 | 45 |
| 7 | 78 |
| 8 | 91 |
| 9 | 171 |
| 10 | 300 |
| 11 | 595 |
| 12 | 990 |
| 13 | 1711 |
| 14 | 5565 |
| 15 | 6555 |
| 16 | 66066 |
| 17 | 333336 |