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 | 2 |
| 2 | 28 |
| 3 | 126 |
| 4 | 728 |
| 5 | 3374 |
| 6 | 6858 |
| 7 | 19682 |
| 8 | 24390 |
| 9 | 29790 |
| 10 | 50652 |
| 11 | 91126 |
| 12 | 250048 |
| 13 | 274626 |
| 14 | 300762 |
| 15 | 328510 |
| 16 | 357912 |
| 17 | 571788 |
| 18 | 753570 |
| 19 | 970298 |
| 20 | 1157626 |
| 21 | 1295028 |
| 22 | 1442898 |
| 23 | 1771560 |
| 24 | 1860868 |
| 25 | 2146688 |
| 26 | 2146690 |
| 27 | 2460374 |
| 28 | 2924208 |
| 29 | 3048624 |
| 30 | 3442950 |
| 31 | 3581578 |
| 32 | 4492124 |
| 33 | 5000212 |