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) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 168 |
| 3 | 3190 |
| 4 | 80136 |
| 5 | 2553162 |
| 6 | 99579994 |
| 7 | 4624245724 |
| 8 | 250138459808 |
| 9 | 15488221792442 |
| 10 | 1082305443525010 |
| 11 | 84364431201000877 |
| 12 | 7264439969560330768 |
| 13 | 685338322012632405151 |
| 14 | 70341947440289270101707 |