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 | 3 |
| 2 | 4 |
| 3 | 6 |
| 4 | 15 |
| 5 | 27 |
| 6 | 30 |
| 7 | 54 |
| 8 | 69 |
| 9 | 90 |
| 10 | 96 |
| 11 | 99 |
| 12 | 120 |
| 13 | 126 |
| 14 | 481 |
| 15 | 564 |
| 16 | 1050 |
| 17 | 1656 |
| 18 | 3480 |
| 19 | 7680 |
| 20 | 9612 |
| 21 | 11520 |
| 22 | 393216 |
| 23 | 612846 |
| 24 | 2220864 |
| 25 | 5506086 |
| 26 | 5579652 |
| 27 | 8177664 |
| 28 | 18087936 |
| 29 | 23711514 |
| 30 | 111544794 |
| 31 | 440477976 |
| 32 | 555176025 |