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 | 12 |
| 3 | 68 |
| 4 | 260 |
| 5 | 777 |
| 6 | 1960 |
| 7 | 4368 |
| 8 | 8856 |
| 9 | 16665 |
| 10 | 29524 |
| 11 | 49764 |
| 12 | 80444 |
| 13 | 125489 |
| 14 | 189840 |
| 15 | 279616 |
| 16 | 402288 |
| 17 | 566865 |
| 18 | 784092 |
| 19 | 1066660 |
| 20 | 1429428 |
| 21 | 1889657 |
| 22 | 2467256 |
| 23 | 3185040 |
| 24 | 4069000 |
| 25 | 5148585 |
| 26 | 6456996 |
| 27 | 8031492 |
| 28 | 9913708 |
| 29 | 12149985 |
| 30 | 14791712 |
| 31 | 17895680 |
| 32 | 21524448 |
| 33 | 25746721 |
| 34 | 30637740 |