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 | 57 |
| 3 | 847 |
| 4 | 1694 |
| 5 | 3039 |
| 6 | 3388 |
| 7 | 3479 |
| 8 | 6078 |
| 9 | 6776 |
| 10 | 6958 |
| 11 | 13916 |
| 12 | 27832 |
| 13 | 55664 |
| 14 | 111328 |
| 15 | 236107 |
| 16 | 246721 |
| 17 | 311257 |
| 18 | 493442 |
| 19 | 622514 |
| 20 | 986884 |
| 21 | 1245028 |
| 22 | 1328233 |
| 23 | 1973768 |
| 24 | 2052521 |
| 25 | 2490056 |
| 26 | 2656466 |
| 27 | 3947536 |
| 28 | 4105042 |
| 29 | 4980112 |
| 30 | 8210084 |