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) |
|---|---|
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 27 |
| 6 | 22 |
| 7 | 130 |
| 8 | 225 |
| 9 | 595 |
| 10 | 532 |
| 11 | 5292 |
| 12 | 4830 |
| 13 | 57750 |
| 14 | 53460 |
| 15 | 49764 |
| 16 | 93093 |
| 17 | 1486485 |
| 18 | 1401400 |
| 19 | 25185160 |
| 20 | 23891868 |
| 21 | 22724988 |
| 22 | 21666840 |
| 23 | 476166600 |
| 24 | 455885430 |
| 25 | 2186310126 |
| 26 | 2100505176 |
| 27 | 6063549800 |
| 28 | 5842908500 |
| 29 | 163495203300 |
| 30 | 157949751960 |
| 31 | 4735815444360 |