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 | 25 |
| 3 | 133 |
| 4 | 581 |
| 5 | 1331 |
| 6 | 3923 |
| 7 | 6667 |
| 8 | 14347 |
| 9 | 23824 |
| 10 | 41824 |
| 11 | 57796 |
| 12 | 106180 |
| 13 | 136938 |
| 14 | 202794 |
| 15 | 283794 |
| 16 | 410770 |
| 17 | 499204 |
| 18 | 726652 |
| 19 | 863832 |
| 20 | 1199832 |
| 21 | 1496184 |
| 22 | 1879512 |
| 23 | 2171520 |
| 24 | 3000960 |
| 25 | 3485335 |
| 26 | 4223527 |
| 27 | 5010847 |
| 28 | 6240159 |
| 29 | 6971829 |
| 30 | 8915829 |
| 31 | 9869141 |
| 32 | 11933525 |
| 33 | 13658501 |