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 | 28 |
| 2 | 336 |
| 3 | 3636 |
| 4 | 37254 |
| 5 | 368218 |
| 6 | 3543465 |
| 7 | 33420304 |
| 8 | 310188575 |
| 9 | 2842734858 |
| 10 | 25785030510 |
| 11 | 231905061219 |
| 12 | 2071004316674 |
| 13 | 18384294374976 |
| 14 | 162358277380149 |
| 15 | 1427441485073845 |
| 16 | 12500646342073494 |
| 17 | 109091420391340409 |