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 | 1 |
| 2 | 24 |
| 3 | 252 |
| 4 | 2788 |
| 5 | 31923 |
| 6 | 352105 |
| 7 | 3700992 |
| 8 | 37619035 |
| 9 | 375300388 |
| 10 | 3721757919 |
| 11 | 37050089673 |
| 12 | 372206961122 |
| 13 | 3774238125518 |
| 14 | 38503409891419 |
| 15 | 393429821383490 |
| 16 | 4011462863576801 |